I have a Toshiba notebook that currently has 512mb of memory split between two 256mb boards but I've been looking into upping it a bit because I have so many programs that drain the memory. Stuff like Photoshop, Word, and so on. I was thinking of swapping one of the 256mb boards with a 512mb board. Are there any people out there that have upgraded their notebooks memory? I'm curious to find out the results and such. Is there a noticeable difference in terms of performance and speed?