I stumbled upon this website where someone wrote up racial modifiers when rolling up a character.
If you scroll past their take on SFB characters (how I despise Star Fleet battles) to the middle of the page, Gamma Quadrant characters are discussed.
Someone came up with the interesting idea for Changelings by pregenerating a fixed pool to be (presumably) shifted between STR and END during an adventure.
The JemHadar seem a little tough in racial modifiers, but I am intrigued with the Changeling pooling method.
The website can be found at:
http://www.klingon-empire.org/forum/...cial-Modifiers