I jumped the gun a bit guys. I did little research, bought on impulse and then read more after. All of the bicycle calculators and reading i've done points me to a 19 or 20" bicycle. My buddy has an Iron Horse sinister 6.1 which fits me well, but its been quite a while since i was on a mountain bike. I just ordered off of nashbar a "Diamondback Overdrive Expert 20" ". I got it for a great steal and have been looking forward to putting it together. But reading and such im confused. One forum told me i should ride an 18". I'll mainly be taking some calm trails nothing hardcore and street riding. I'm 6' with a 32" inseam. The bike has a 31.5" standover. With my feet 6" apart and measuring 31.5" i had about 1.5-2" of extra clearance. Someone put my mind at ease! Shipping was 45$ so i'll have heart failure if i have to send it back. It maxed out my funds for now, so parts wont be able to be bought for a little while.