Stuff it, I found a place that has a 300D SLR in stock below RRP, and they can do 12 months interest free with 1/3 deposit. I'll have it in my hands within a couple of hours.
The Pro1 looks like a very nice camera, but it seems that its 8MP doesn't really compare so well with the 300D's 5MP. I'd prefer quality rather than higher numbers.