A white board is a lot cheaper than a Wacom tablet, but you can do more with it. Plus you have the option of saving whatever you draw/write, or turning it into (searchable) text in one step. With a white-board you eventually need to erase it. Microsoft OneNote is fantastic for using a tablet- you can write and type anywhere, categorize things into master sections, then tabs and sub-tabs, you can scan things right into the program very easily, it does handwriting and even speech recognition, and it's just very flexible. Even if you don't get a tablet give OneNote a try for every day stick-it note type stuff. I've even started keeping my recipes there.
Circuit City has the Bamboo $10 cheaper than MSRP, and every now and then they offer 10% off a whole category of products that includes tablets. I ordered it on like a Wednesday afternoon for 24 minute in-store pickup, and it wasn't ready when I got there (they had to go get it, then brought the wrong one). Anyway, as with their guarantee I got a $24 gift card. I returned it at first because I wasn't working at the time and decided I didn't REALLY need it, but changed my mind a few weeks later when it went 10% off again and used the gift card. Anyway, in the end I got it for like $44 >). I think the 10% off thing applies only to online orders, as it appears as a "coupon code" on the product page.