If you're looking for a fast boot drive but can't afford an SSD, you might want to check out this deal. Newegg has got Western Digital Raptor WD740ADFS 74GB 10000 RPM hard drives for $39.99. The catch is that the drives are recertified and the warranty is only 90 days.
http://www.newegg.com/Product/Product.a ... 6822136743