AMD's just released their new Bulldozer chipsets. They didn't live up to expectations, which is why Intel felt comfortable putting their prices up a bit. Pity. I was hoping Sandy Bridge would drop in price a bit as a result.
Ivy Bridge is supposedly coming out first quarter 2012. My plan is to wait till that gets released and either pick one of those up if they just replace Sandy Bridge or probably get a Sandy Bridge chip if they drop in price considerably. I got my current Core 2 Quad when the i7 had just come out and it pushed the prices of the previous generation way down, but Ivy Bridge is just a die shrink with a little increased performance, so i'm not sure how much it will affect pricing.