I have two expanded TIVos - a 220 hour Series2 and a 298 hour Series1. They were both in use a lot when I lived with some friends, but now I live alone and I really don't need *that* much capacity. So I'm selling the Series1 on eBay. Bidding starts at $600 - it is a Philips HDR212 that I've added two 120GB drives to, and a TurboNet card. It comes with a lifetime subscription.
You can see the sale listing here.