I would gain additional confidence in this configuration following any comments the forum inhabitants. Have I missed anything obvious? The PSU I have is a Zalman ZM850-HP, which I reckon is up to the job.
I couldn't find the mushkin RAM you mentioned (I live in the UK and here we get screwed on price and availability) but I did find this OCZ CAS6 memory(6-8-6-24 timings) which seems better, I'm curious as to why ebuyer is selling it cheaper than similar memory with looser timings, have I missed something?
The reason I chose the Palit cards over the similarly priced Asus ones is that Palit has fitted its own cooler, which keeps the cards slightly cooler, which can only be a good thing as the GTX 4470 apparently gets very hot indeed.