avoid worksman
Also, steel, aluminum, carbon, whatever ... you're not going to break the bike. All three materials feel different ... if you can, test them out and see what feels best to you.
The wheels, yeah, you'll need a more robust wheel with a higher spoke count ...
but don't be dissuaded or discouraged that your size relegates you to a "fat man's" bike ... it's simply not true.
Last edited by ill.clyde; 08-19-11 at 11:27 AM.