I did a lot of research....
I knew that I didn't want a really front heavy xbow.... they are all heavy, but some are more front heavy than others.
I toyed with reverse draw bows, with the redistribution in weight, I figured they would be great.
Then I ran across the X-Force 400 from Carbon Express. It is designed for small stature people or people that are dissabled. It is 4 to 5 inches shorter than most xbows and is considered a bullpup design because the trigger is so much forward of the release. It shoots 310 FPS, actually a liitte faster with CX Crosbolts. It fit me well, and I can hold it in a stand for a long time. If you plan on sitting in a stand, get the crank for it as well. (easier to cock)
My best advice would be to go to Academy or somewhere similar and hold them... possibly fire them if they permit.