DVRupgrade is selling the TiVo HD upgraded with a 320GB drive for $449. But, even better, as a special offer for TiVo Lovers readers, enter coupon code DVRTLB2007-050 during checkout and save $50 – for a total of $399. So you get double the capacity (320GB vs. 160GB) of a standard TiVo HD, which means you can record up to 43 hours of HD content or up to 409 hours of SD content, for $399.
The coupon is only good on that specific model, as a special offer, but they also have other expanded TiVo Series3 and TiVo HD models, with up to 1TB in capacity. And if you want even more, they do special orders up to 2TB.