Londo,
Someone just posted on this today, but I can't find it (argh!). Here's the link I had open on another tab - outlining a method to backup your entire phone image onto your storage card and then restore it from the card. It surprised me since I didn't know this was possible - always thought the easiest solution was to reflash from a base rom or kitchen.
http://www.geekzone.co.nz/inane/1119