I use a Canon EOS 30D, Canon EOS 400D and a Canon EOS 1000FN with

Canon: EF-S 18-55mm f/3.5-5.6, EF 35-80mm f/4-5.6,

EF 50mm f/1.8, EF 80-200mm f/4.5-5.6

Sigma: 10-20mm f/4-5.6, 28-300mm f/3.5-6.3, 105mm f/2.8, 17-35 mm f2.8

Kenko 2x Extender

I also use a few filters too:

Cokin: ND2 Grad, ND4, ND8

Hoya: Red, Yellow and Polarizer

I use Photoshop CS3 on a Apple Mac 2.4GHz 2GB 160GB