SSD is the way to go!
Installed a 128GB SSD back in Oct 2012 and will never go back to using mechanical HDD for anything other than storage. SSDs are blazing FAST and prices are dropping. Paid 80 bucks for it back in 2012 and now that same SSD is going for 55 bucks at Newegg. It's perfect boot drive. The OEM desktop HDD is used for storage. SSD is easy to install. Came with a YouTube link that walks you through the install. On a cold start it loads Linux, ready to run in 10 seconds after the Dell splash screen shows.