I'd like to know if there is a benchmark test that can be run in game, like the one in GTAIV and EFLC
if so how do i run it, if not what other benchmarking tools are out there.

I know my system can handle the game at maxed settings(system is in sig)
i was just hoping there was a built in test that way i can run it and make adjustments
to get the best out of the game.

FRAPS does fps benchmarks, and there is a mod on the nexus called "Skyrim Performance Monitor" that is pretty cool that looks at many things (only reason I don't use it is because between fraps, MSI AB, cpu mon, I get what I need).