Currently running SuSE 9.3 and am looking to upgrade to 10 (on IBM T42). Currently have a dual boot system and with this install I'm blowing the Windows partition away (I use vmware for the Windows apps I can't live without, and I like it that way

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So...I have a few questions:
KDE or GNome? I've been using KDE and like it for the most part - but I want GNome's e-mail system and would like to install as little as possible for one or the other. I'm leaning to GNome but then I say reddazz's desktop and WOW - that is cool! I'm perplexed.
HD Partitioning. Currently I'm running with:
Disk /dev/hda: 60.0 GB, 60011642880 bytes
16 heads, 63 sectors/track, 116280 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 24360 12277408+ 7 HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/hda2 24361 85305 30716280 c W95 FAT32 (LBA)
Partition 2 does not end on cylinder boundary.
/dev/hda3 85314 116280 15607147+ f W95 Ext'd (LBA)
Partition 3 does not end on cylinder boundary.
/dev/hda5 85314 87386 1044193+ 82 Linux swap / Solaris
/dev/hda6 87386 116280 14562891 83 Linux
The NTFS and FAT32 partitions are gone after this install. I'm thinking it should be somewhere along the lines of:
boot 100mb
/swap 1.5Gb
/ 10Gb
/Home <rest>
Sound good for SuSE? I have to admit that I've only been running the OS for around 4 months and I'm still not sure how the applications decide to install themselvs, chose a tmp driectory to use, etc..
It's a laptop that i use for everything peronsal (e-mail, and the like) as well as for work (network admin - use many of the various network tools provided only - or best - with Linux) so I guess my major concerns are speed and safety (as in protecting the data). This brings me to the next questions, file system type. I'm currently using reiserfs - stick with that? ext3?