I don't really like the 2650 (prefer the lighter/faster 4150) but for what you want to do that's a GREAT PRICE. Plus you don't have to hassle with the $300 rebates everyone else did.
The refurb's at Dell change inventory by the minute, one minute you're checking out a GREAT deal, refresh, then it's gone.
I would only be concerned with dead pixels on a Dell refurb. So if you buy one, immediately boot it up, customize the OS (or re-install your own), then check for DEAD PIXELS using an application. I think refurb's have a 14 day return policy, not a 30 day ... so you still have a safeguard if you do not like the laptop.