Boilingpoint....this OTA update came out less than two weeks ago. It's a bit unrealistic to expect an "easy" answer immediately after sprint changes the game...
Read through the "rooting with VC" thread carefully, (linked above by someone else). Edit - also, read about how to force flash back to V9, then update to VC with the LG tool, as that's what you have to do. Read it all to be sure. 50 pages only takes like 15 minutes, and it's 15 minutes that ensure you do it right. Hell, even if 50 pages takes an hour, it's an hour so you do it right...and for the most part, everything you need is in the first few posts.
Take the time to learn it right, and then do it right. Or wait a few months until all the bugs are ironed out and someone else has done the work for you, and there's a one click solution.
A word of warning though....If you're looking to run CM7, you'll probably want to gain some of the experience from doing the rooting "the hard way".