I think 6MP is fine for a compact, you'll not need any more than that unless your printing above A4 size. Fuji make good compacts too, i use a Kodak which did me fine till i got my Canon DSLR, but the missus uses a fuji 5MP and the resolution is great... the colours are fantastic, but can occasionally be too saturated.
I don't know whether the Argos spec is right, but 200 pics from 4x4AA batteries sounds a big energy hungry to me, this is the only thing that'd concern me about the Fuji.
I also think you should do a quick online search to fing the best price, you may even get a price match of a local store to save the hassle of mail order.
Oh... you will get the bug, trust me