Third busted shutter button

Well three times a charm I guess for my 30D. Yesterday I sent it back to Canon get the shutter button repaired. I want a replacement, but they don't do that with SLR's apparently. I am definitely going to sell the body after this. I really need a body that is reliable for longer that 5 months at a time. While I am going to keep all my L lenses, I am still very tempted by a Pentax K10D with some pancake lenses, or an Olympus e420 with a 25mm pancake. So light weight, perfect for street photos. To replace the 30D I am thinking a 5D would be perfect as I would get the best out of the lenses I have.