Whether you decide to go with a Quad or a Dual, there’s a great thread in the Overclocking Forum that will help you to get the most out of your processor … by getting it running faster than ever before. If you stuck with AMD, then get some tips from this thread on overclocking a Brisbane core.
For the truly brave, there is a thread covering how to remove and replace crappy capacitors with higher quality ones, and it has plenty of pictures to make sure you know what is going on. You can also follow the steps to get XP on your nice new Vista laptop, even if it has non-standard SATA chips on it.
Whatever your favourite project is, there should be plenty to keep you productive and occupied over the weekend … or you could just play BioShock