I have the Topeak MTX V-Type Rack: http://tinyurl.com/rdpz6

with the Topeak MTX Dual Side Frame: http://tinyurl.com/mpje9

with the Topeak MTX TrunkBag EXP for long rides/carrying rain gear:

http://tinyurl.com/m7bkt

And the Topeak RX TrunkBag EX for all other rides: http://tinyurl.com/krp4d

All the MTX and RX bags are compatible with the MTX Racks, but the RX racks can only hold the RX bags.

Here's a picture of my bike with the small bag on her:

http://tinyurl.com/zvpxf

and you can also see the under seat bag for tools, tubes, patches, and the Bento Box on the top tube for Sport Beans, electrolyte caps, and the Aero Bag between the aerobars for cell phone, camera, car keys.

And the Topeak Road Morph pump under the top tube, the LED taillight that just lives on the seat stay (I have two others I put on for long night riding- you can see the empty mount just above the taillight) the bike lock around the seat just in case I have to leave her unattended and I have my rain jacket bungied on top of the small bag. I think this was at Three State Three Mountain.

Nanci