I have a 17" Uni MBP, and have been watching the prices of 4GB DDR3 1066Mhz 204 SODIMM sticks almost obsessively. The price has been dropping pretty fast lately. Over at SuperBiiz it's down to $210 with coupon ($45 off with code SUPERSTEAL45, ends 10/04). The 2nd best price is over at OWC which has them for $248 per stick. I hope they drop down to $200 per stick soon, and that's when I'll buy two.