I've recently shaken up my computer setup a bit and decided I'd post what I've got and what they do for me. Main PC: Windows Vista, its the main pc in my profile. I do some (not much) gaming with it, and if I'm going to watch any videos on a PC that is the computer I do it on. If I'm sitting in my office it is the computer I'm at. PowerMac G4 (torrent machine/media server): This one is my 'feel good' story. I bought it off of eBay a couple years ago, it is a Digital Audio 550Mhz G4 system. It does use IDE (rather than SCSI), but it has a HD capacity limit of 137? gigs. I considered buying a PCI SATA card for it, but they are pretty expensive for Macs and I didn't think it was worth it. So I bought a USB 2.0/FW400/eSATA enclosure and one of those 1.5TB hard drives. Hooked that up over FW400 and I have partitioned it to a torrent drive and a media drive. I have ripped DVDs on it, hd movies, and all my music. It does manage to be able to stream out at least 720p video over my network wirelessly to my Mini (more on that in a bit). Secondary PC: This one is the PC I built when I was too cheap to jump on the PCIe bandwagon and wanted a C2D processor. It doesn't do much for me, I run Windows 7 on it and also Fedora 11. Its sort of a test bed for any whim I get. Laptop: 15" Powerbook G4, this was the last Powerbook model ever made, has the awesome yet odd resolution of 1440x960. This computer gets a ton of use, and sits on my coffee table in my living room most of the time. I use it for browsing, chatting while watching TV. It also gets brought into school/work with me for getting actual work done too. Media/HTPC: This is my newest, it is one of the new Mac Mini computers. A 2.0Ghz Core2Duo, I've upgraded it to 4GB of RAM, and will upgrade the HD if I feel necessary (It was intended to be upgraded, but an ordering mistake on my part has delayed that) It replaces an older CoreDuo Mac Mini. It is connected to my HDTV through a MDP->DVI adapter then a DVI->HDMI cable. Optical audio out is ran to my HT Reciever. It is wirelessly connected to my network and I use Plex, I then play movies and such on my TV, much better experience than watching on a small monitor. I replaced the older Mini because it could not play 1080p files, the new one has a better processor and the 9400M GPU as opposed to the Intel GMA chipset which is terrible.