Okay, so I'm thinking I'm going to pick up the Extreme4 as it sounds rock solid, and I have a couple of questions.

1. I'm leaning towards 2500k. Is the 2600k worth an extra 40%?

2. What RAM to get. I'm coming from 4x1GB. I was kind of thinking about 2x4GB to get the extra RAM now and have room to upgrade later (if ever). But I see most of the pros going with 2x2GB. Which sticks are good price/performance winners? I see a bunch of the 1600 Ripjaws. Any specific sets?

Thanks.