Apple tablet, schablet. Who needs a stand-alone tablet when you can turn your existing MacBook into one? Inklet is a cool program which lets you draw on your trackpad, turning your scribbles into Photoshop masterpieces.
To download, you'll need to give up $24.95 (though there's also a free demo that's worth checking out), and will obviously need a MacBook with multitouch, along with Snow Leopard. Inklet works best with a stylus, so better scratch around for your old DS one if you can. The familiar multitouch gestures work well with Inklet, so if you're at all art-inclined, the video below is worth checking out for a demo. [Inklet]