Hi fellow Clydes/Athenas.

I'm getting back into cycling after about 5 years out of the saddle. I have a Trek Navigator 7100 hybrid that I'm using as a fitness cycle (trails and commuting) until I drop around 80 pounds, then I'd like to get a road bike and use the hybrid as a kick-around bike for commuting and errands.

What is a good rear rack for my Trek hybrid? I'd like to maybe use it for panniers as well. The Topeak Explorer seems to get good reviews. Do I want V-supports or U-supports? What the benefits/drawbacks of each?