I've been waiting for the price to go down to 50 quids again but simply can't take it anymore. So I bit the bullet and paid a pricey 75 quids for the same thing that was sold for 20 quids less a week or two ago. For some reason I find it more comforting to order from Crucial rather than Play.com I have absolutely no idea what I've gotten myself into, though. Was it an impulse purchase?!! I hope I'll the receive the RAM by Tuesday as I paid 3 quids extra for the super duper express delivery. Now I just have to go to B&Q to buy the screwdriver (is it the philips #0 that i need?) I'd greatly appreciate if anyone with 4GB Crucial RAM in their MBPs could report how the thing is doing inside their MBPs. Cheers P.S. let's hope they don't drop half the price next week. crucial is soo highly unstable.