Kinda new to this whole PC stuff, and any help would be greatly appreciated!
Here's what I've got...
Dell XPS 410
4Gb Ram
Intel Core 2 6600 @ 2.40 GHz (Sometimes 'canyourunit.com' tells me 2.8Gh, not sure that that's about)
Nvidia GeForce GT220 with 1.5Gb video ram
Can run Batman Arkham Asylum, L4D2, Portal 2, Crysis 2, Oblivion, DOW II all at high-max settings.
Can this run Skyrim with medium-high settings? Don't really mind maxing out the settings all that much. Thanks!
Ignore almost anything from SR Labs. They don't have any on-staff hardware Nerd, so they are wrong about as often as they are correct.
The GT 220 was an in-between card below Mainline, and above Low End business class, and that was three years ago. It was never a "Medium" card as those are normally defined. None of the games you listed have much of a meaning related to Skyrim. You would need to compare to Fallout, not to those games. IMO, Low Settings with a mix of Medium, at medium resolutions, unless you sacrifice animation smoothness.