Upgrade A Dell Vostro 1400 XP To Windows 7?

I have a Vostro 1400 with a Core 2 Duo T5470 processor - 3 gb RAM. It's running XP Pro.

I ran the Windows 7 upgrade analyzer, and it said it would run 7. However, the Dell site doesn't list it as being 7 compatible. Who do I believe?

Will I be able able to put 7 Professional on this machine? Has anyone else upgraded this computer to 7?

I just think it's time to upgrade to the newer system.