I quite like the Trident at Biggin Hill ...
No seriously, I've played about with one or two while trying to think of ways of maintaining currency on the IR without paying for it. Lots of them have pretty pictures, which I don't pay that much attention to I'm afraid, but the one that's the dog's b******s for IFR currency is one that's put out by Jeppesen. I think it's called flite pro. It also runs on my mate's manky old steam powered PC, I couldn't tell you the spec but I'm sure it uses a damn sight less processor power than FS2000 ...