Personally I'd get the 9500 Pro as it supports DX9 and is therefore more 'future proof'.
That's board has pretty good reviews, and is an excellent choice for teh price.
I'd also go for a Western Digital Caviar HDD. It's UDMA133 and has an 8MB cache, meaning it has a much faster 'seek time'.
I really noticed the difference when I changed mine. My HDD light barely flashes once a program has started.