I'm using:

Canon EOS 5D Mark II

+ Canon EF 16-35mm F2.8 L II USM

+ Canon EF 100mm F2.8 L Macro IS USM

+ Canon EF 70-200mm F4 L IS USM

+ Canon EF 24-105mm F4 L IS USM

+ Sigma 50mm F1.4 EX DG HSM

Panasonic Lumix DMC-GF1

+ LUMIX G X VARIO PZ 14-42mm F3.5-5.6

+ LUMIX G 20mm f/1.7

Canon IXY 910IS ( = IXUS 860IS = PowerShot SD870 )

LOMO LC-A

LOMO Supersampler

I had used:

Canon EOS 30D (sold)

Canon EF-S 10-22mm F3.5-4.5 USM (sold)

Sigma 18-50mm F2.8 EX DC (sold)

Casio EX-Z750

Canon EOS 300D (sold)

Canon EF-S 18-55mm (sold)

Canon IXUS 850IS

Canon IXUS S400 (given away)

Canon PowerShot G1

and some compact film cameras...