I fully understand, I've been in the same situation many times before. Sometimes you just have to make the best of what you've got. I guess since you've already done the memory upgrade and plan to hold on to it for a while longer, a power supply upgrade would be a worth while investment. That 9800GT was a really good deal and gloves085 may be right about not needing a 400w psu. That particular card doesn't require the additional pci-e power connection and may work with you 300w psu. Good luck with whatever route you decide to go. There are a lot of very knowledgeable people lurking around here if you need help with anything.