Yes, SuSE includes MPlayer, and I use that for MPEG and AVI files. You do need to download the codecs from the net, but it\'s pretty easy, and you have the same issue with Windows (needing to get the codecs). So the answer is a definate yes. MPlayer also does DVD etc.
Installation is very easy, all graphical, you just click the language, country, enter your user name and password. If you want you can of course click on the advanced buttons and start to configure things like how the disk is formatted etc, but of course it generally makes sensible choices itself so no real need to bother unless you are a control freak. So the answer is it\'s a pretty easy install, no command line stuff, but it\'s worth checking the database of supported hardware at the SuSE site FIRST !
Dual booting, yes I can dual boot Of course, this assumes you have got your disk formated in FAT32 format, not NTFS. I think the default for Win XP is NTFS (not sure though, never used it), in that case SuSE cannot reformat the disk to put linux on. What you will need to do is back up your files to a CD (ie personal stuff in My Documents, and save game files or whatever), then do a fresh install of Win XP, but this time install it under FAT32. Once done reinstall whatever files you used to have, then go into your BIOS, change boot options to boot from CD and put in the SuSE 8.2 disk, click on the next button a few times during the install, 20 minutes later you should have a dual booting Win XP and GNU/Linux system.
Worth it IMHO.
Hope that helps.