I'm still using a 300D, I've finally got the money for a new body, now its just a case of waiting and seeing what the extra features vs extra price of the 40 vs 30 weigh out like. Wish they'd hurry up and release the specs/price on the damn thing.
I'm in the exact situation you're in. However, i might just get a 70-200 f/2.8 to get a nice focal range with my 24-70, if i don't see the need for a new body. But i'm getting tired of my 300D..