Any advice on these?

http://www.roadbikeoutlet.com/single...k-bicycle.html

http://bikesdirect.com/products/windsor/timeline.htm

http://www.roadbikeoutlet.com/road-b...road-bike.html

http://www.roadbikeoutlet.com/road-b...-sora-sti.html

http://www.bikesdirect.com/products/...y/avenue_b.htm

http://www.bikesdirect.com/products/...ington1_IX.htm

The reason I put the SS in was because I'm doing a mostly flat commute in a citylike environment, and money I spend on gears and stuff, the better the rest of the bike and less maintenance right?

Thanks