Context Free Grammar for English Sounding Names - random

Question

I am currently writing an application that will generate random data; specifically, random names. I have made some decent progress, but am not satisfied with many of the generated names. The problem lies in my production rules, which I've attached to the bottom of this post.
The basic idea is: consonant, vowel, consonant, vowel, but some consonants themselves map to vowels (such as b< VO >).
I have not fully created the rules yet, but the final idea would follow the format shown below. However, rather than finishing it, I would like to make a better basis for the production rules.
I have tried to find a reference that discusses either: a CFG already created for English-sounding words, or an English reference that disassembles the basic format of letter combinations for words. Unfortunately, I have not been able to find a useful resource to help me advance farther than I already have. Does anyone know of a place I should look, or a reference I can look at?
ALSO: in your opinion, do you believe a context-sensitive grammar might work better?
//the following will deal with single vowels and consonants
var CO = ['b','c','d','f','g','h','j','k','l','m','n','p','qu','r','s','t','v','w','x','y','z'];
CO.probabilities = [2.41,4.49,6.87,3.59,3.25,9.84,0.24,1.24,6.5,3.88,10.9,3.11,0.153,9.67,10.2,14.6,1.58,3.81,0.242,3.19,0.12];
CO.name = "CO";
var VO = ['a','e','i','o','u'];
VO.probabilities = [21.43,33.33,18.28,19.7,7.23];
VO.name = "VO";
var LETTER = ['<VO>','<CO>'];
LETTER.probabilities = [38.1,61.9];
LETTER.name = "LETTER";
//the following deal with connsonant pairs
var BH = ['c','p','r','s','t']; //the fisrt part of a th, ph, sh, pair (before H)
BH.probabilities = [20,10,20,25,25];
BH.name = "BH";
var BL = ['b','c','f','g','p','s']; //before letter l
BL.probabilities = [10,20,10,10,25,25]
BL.name = "BL";
var COP = ['<BH>h','<BL>l'] //consonant pairs
COP.probabilities = [50,50];
COP.name = "COP";
//this is a generic syllable, that does not take grammar rules into consideration
var SYL = ['<CO><VO>','<VO><CO>','<CO><VO><VO>'];
SYL.probabilities = [50,20,30];
SYL.name = "SYL";
//the following deal with mid word syllablse
var CLOSED = ['<CO><VO><CO>','<CO><VO><CO><CO>'];
CLOSED.probabilities = [75,25];
CLOSED.name = "CLOSED";
var OPEN = ['<CO><VO>','<CO><CO><VO>'];
OPEN.probabilities = [60,40];
OPEN.name = "OPEN";
var VR = ['<VO>r']; //vowel-r
VR.probabilities = [100];
VR.name = "VR";
var MID = ['<CLOSED>','<OPEN>','<VR>'];
MID.probabilities = [33,33,33];
MID.name = "MID";
//the following will deal with ending syllables
var VCE = ['<VO><CO>e','<LETTER><VO><CO>e'];
VCE.probabilities = [75,25];
VCE.name = "VCE";
var CLE = ['<CO>le'];
CLE.probabilities = [100];
CLE.name = "CLE";
var OE = ['tion','age','ive']; //other endings
OE.probabilities = [33,33,33];
OE.name = "OE";
var ES = ['<VCE>','<CLE>','<OE>','<VR>']; //contains all ending syllables
ES.probabilities = [40,40,20];
ES.name = "ES";
var rules = [CO,VO,BH,BL,COP,LETTER,SYL,CLOSED,OPEN,VR,MID,VCE,CLE,OE,ES];
//These are some highly-defined production rules
var streetSuffix = ['road','street','way','avenue','drive','grove','lane','gardens','place','crescent','close','square','hill','circus','mews','vale','rise','mead'];
streetSuffix.probabilities = [15,15,5,10,5,2.7,2.7,2.7,2.7,2.7,2.7,2.7,2.7,2.7,2.7,2.7,2.7,2.7];
var states = ['Alabama','Alaska','American Samoa','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','Florida','Georgia','Guam','Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Marshall Islands','Maryland','Massachusetts','Michigan','Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York','North Carolina','North Dakota','Ohio','Oklahoma','Oregon','Palau','Pennsylvania','Puerto Rico','Rhode Island','South Carolina','South Dakota','Tennessee','Texas','Utah','Vermont','Virgin Island','Virginia','Washington','West Virginia','Wisconsin','Wyoming'];
var cityNewWordSuffix = ['city','town',''];
var cityEndWordSuffix = ['polis','ville','ford','furt','forth','shire','berg','gurg','borough','brough','field','kirk','bury','stadt',''];
var siteSuffix = ['com','org','net','edu'];
/**
This will generate a random name of Length length
*/
function generateRandomName() {
//string will be random length of CO VO pattern for now
var result;
result = "<COP><VO><MID><VO><ES>";
while (hasNonTerminal(result)) {
result = replaceFirstNonTerminal(result);
}
return result;
}
Here are a few words generated by the machine in its current state:
"cheiroene",
"sloeraase",
"sledehgeute",
"rhaorenone",
"rheerisute",
"chaereehe",
"sletraoege",
"sluureese",
"chaheyleete",
"chierauhe",
"ploclooate",
"glawofhaice",
"thanisgoage",
"slelaodose",
"blaereode",
"shihudeife",
"slaereene",
"pleheaele",
"rhepicsaile",
"ploeruoge",
"sliareuhe",
"thaereafe",
"thaaraeke",
"cheoreate",
"shofetniote",
"phiraoese",
"clilniueye",
"slepceikede",
"cligloueohe",
"phitleoime",