I posted some impressions of the Dawes SST vs Hour vs Kilo TT in this thread:
http://www.bikeforums.net/showthread.php?t=467386

If you want a summary, the Kilo TT is tighter/more aggressive and the Hour and SST are similar to each other in respect that they both have a more relaxed geo. The SST is a better value than the Hour, IMO (has brakes, bull horn bars, forumula hubs and alex wheelset).

Most people highly recommend upgrading the stock cog and lockring from the get-go, as they're cheap and might not be the gear inches you're looking for anyway. I wouldn't choose a bike based on the stock gearing because you should probably replace the rear cog/lockring anyway.