Spiff, as an alternative to TiVo, you can buy an Airport Express from Apple and hook it up to your HT. With the free iTunes program, you can rip all your music with Apple's Lossless Encoder, saving 50% over uncompressed file sizes, and then wirelessly stream music to your HT via the Airport Express. It only costs $129. I have one and it's great.

The one downside it that it doesn't come with remote control functionality. There are ways of doing it, but all are extremely geeky.