digi slr cameras?

[Talonmotorsport]

My boy is in to photography so for his birthday we have brought him a second hand canon 35mm film SLR with all the developing kit for £45, a bargin for him to learn with and to take proper pics with (I hope).
I'm also looking for a digital SLR so that he can plug and play with the pics on his PC using photoshop etc. I've been looking at the second hand 8.0 mp ESO Canons with 18-55mm + 300mm lens for around £150-250 is this any good to learn with? Should I be looking at 10.0mp or higher though, I would rather spend more money on a better second hand quality camera than a shiney new lesser model. Any help here would be good as his birthday is only a few days away.