I plumped for a cheapo 'hybrid' in my rather lacklustre Acer i5. Rebuilt on the new drive so only c:. Wow what a difference, I can concurrently run several instances of VS2010, along with SQL Manager, SQL server and Lightroom 3, and all the other usual office stuff. Totally rocks. I chose Seagate Momentus 320GB, think I paid £72 from some outfit in the Channel Islands :)