Just finished my first sprint Triathlon (2:06:24) and used my mountain bike. I was just to slow on the bike and did not have the spped to keep up. I am hooked on the sport so now I need a road bike. I am 6"3 and 320 lbs. so it will have to be strong. I have been thinking steel frame, 105 gears and a rear rim with a 36 count spoke set. Any ideas? I have read some of the post on this subject but any help is welcome. My budget, always important is limited to 1200.00. Thanks