Technology deals and rebates

Rich got me excited about rebates and deals on technology — Tong Family Blog: Current Canon Rebates — great deals on Canon cameras. I did a quick search because i need a new printer for HP Rebates and wow there are a lot of offers out there — HP Rebate Gateway
, HP Hot Deals, HP Web Deals (Is this an official HP site?). Oh I might need a new TIVO too and so I found the Tivo Rebate center. I suspect if I cataloged all the hardware and software on my home network and methodically looked for logical deals and upgrade offers, I would find a lot of great offers. And then there are all the local retailer deals. It is inconvenient to sort thru all this, I really need an automagic way to harvest all the deals I am likely to be interested in.