After having my Tivo for over 5 years now (purchased in Oct 2000) I finally decided to take the plunge and upgrade it. After reading around I decided to take the easy way out and buy the upgrade from a certain unsighted citrus fruit who frequents these forums. Not being one to shirk a challenge I decided to go for the works and got a 200Gb drive, Cachecard, memory and a new PSU. Given that I would have the Tivo in bits and the low cost of a PSU, I decided to give it some new muscle (just in case all that new stuff inside upset it). Nipping home for lunchtime I found the package awaiting me. Throwing caution to the wind (and not wanting to be in the house when Guided Setup done) I decided to do it there and then. After all the blurb says it takes only a short while. So get the Tivo out of the existing resting place - struggling with mass of wires. Get lid off - expecting this to be a problem. Piece of cake if you wedge the front feet on the edge of the desk. Strip out and replace PSU. Again easy - but remeber to note which way fan goes! Fortunately fan has arrow on so no problems. Whip out both existing drives and bung in the new one. Last but not least the trickiest bit - putting in the Cachecard. Don't even think of trying without removing the foot. After that its relatively easy even if a tight squeeze. Put lid back on and replace Tivo. Hunt for lost power cable. Eventually locate it using torch. Plug in and cross fingers. A more prudent man might have done one thing at a time and tested after every stage. Grren light comes on, Powering Up message, Cahchecard loading- we have a Tivo!! Start Guided Setup and return to work. Probably no more than 40 mins. Get back from work and start to play. Fire up IE and type in IP and there is the TivoWeb page - excellent. Impress youngest child by controlling Tivo from study. Think should leave for a few days to bed down. Nope have to fiddle. Add Endpad. Brilliant. Should stop her complaining that it chops off the end of Corrie (assuming nothing on afterwards). Try adding logos but that bit seems broke. Tivoweb tells me my logo dataset is empty so it looks like that ones out. Next play with the things we can't talk about here. It works but notimpressed with quality - more playing to do. Go to bed at one - work next day. Must watch some telly tomorrow! To anyone thinking of upgrading but put off by the apparant complexity then a pre built drive is the way to go (bearing in mind you are paying a premium for the effort expenedby the supplier). Once you have the lid off they are extremely easy machines to tinker with.