4GB swaP???? Why so large?? You really don't need any more then 1 gig for swap. I build servers with less swap then 4 gig. For a workstation its a waste of space. I would set up something like the following:
Partition 1: / somewhare between 5-10 gig.
Partition 2: /swap 1Gig
Partition 3: /home the rest of the drive
For root or / you won't be needing a huge amount of space. This is where all your system files and programs are stored. There is also things like log files and all the library files (dll's in windows). No personal data is stored here, so Id say if you can spare it, make it no more than 10 Gig and no less then 5gig.
Swap we already disscussed. There isn't any need for anything over 1 gig on a workstation/desktop.
/home is where all personal data is kept. All documents, games, mp3, and anything else. This is a partition that needs to be as big as you can. Also, by keeping /home seperate, when you do an upgrade it won't be formated.
Here is my present laptop layout. I dual boot but never use the windows partiton. The only reason I even have it is because my modem isn't supported. When I'm on the road and i need to use a modem connection I boot windows.
Partition 1; Winxp 8 Gig w/5.3 gig used(ntfs)
Partition 2: / root 8 gig w/3.3 gig used(ext3)
Partition 3: /swap 1 gig (swap)
Partition 4: /home 56 gig. w/13 gig used(ext3)
This setup works great. My system specs are below and I very rarely even use any swap. Only when Playing Half-life 2 or Quake 4. Even then its minimal and around 100MB.
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PDR60