I do it and I love it.

My toys:

Canon Eos 450d

Canon Eos 5d Mark II

Canon EF-S 18-50 mm

Canon EF 50 mm f/1,8

Canon EF 85 mm f/1,8 USM

Canon EF 135 mm f/2,0 L USM

Canon EF 24-105 mm f/4,0 L IS USM