My brother-in-law needs more memory for his Dell desktop, as he got an out of memory notice in XP. Don't know the model etc. but its about 5 years old with 1GB of memory. I'm assuming its DDR, but I'm going to check what he has with CPUZ and order him another 1GB of whatever his MB supports. I've never dealt with Dells and just want to make sure they don't have any proprietary BS for memory (Like I know they do with the PSU/MB connectors), and that I can just get whatever is the cheapest/best bang for the buck memory. Thanks.