I say go for the v12 mag's, they are fine for biu bashing and as every body has said light, grippy, strong, sealed bearings. I do bash my ones a bit and in a year there is only 1 pin missing!!!!!! And they still spin smooth as marco hosel's riding.
Although JT you could just get the vp's and cover them in tar, then you will have a light grippy pedal for £15 (Y)