Wow, this is great news. I'm using my Aspire 5515 as I type this, only had it a couple weeks but I'm very satisfied with it. Bought mine at Fry's, but it's the 2gb memory version. I'm glad you were able to upgrade the processor. You went from a 1.6ghz to 1.8. Did it really make that big of a difference? I'm going to upgrade the memory and video memory, too, going to max it out to what it's capable of eventually but did it make much of a difference with the new processor? And how much is that processor you put in it?