I'm not a Dell fan. Don't find their product all that good and the support is worse. Check out epinions.com for the particular model you're looking at. Avoid free financing scam as I've read dozens of posts on Dell's own forum where people have gotten ripped off, which was one of the several problems I had.
After my poor Dell experience(s), I now build my own computers. If you're doing anything other then low end purchases, you can build it better with higher grade components for less $$$. I built a nearly equivalent system for $1,500, when the Gateway and Dell purchase cost would have been $2,500.
Just a warning, corporate "discounts" are higher then street pricing. Neighbor told me that I verified, that even with my 20% discount, it was cheaper with street pricing. The only exception was a "std" configuration my fortune 50 employer buys from them, it was slightly less, but it wasn't configured the way I needed.