What to put on SSD

[Pasi Oja-Nisula <pon@iki.fi>]

I have this:

Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1              37G   14G   22G  39% /
tmpfs                 3.9G  8.0K  3.9G   1% /lib/init/rw
udev                   10M  640K  9.4M   7% /dev
tmpfs                 3.9G     0  3.9G   0% /dev/shm
/dev/hda2             328G  204G  107G  66% /home
tmpfs                 3.9G   49M  3.8G   2% /tmp
tmpfs                 3.9G     0  3.9G   0% /var/lock
tmpfs                 3.9G  296K  3.9G   1% /var/run
tmpfs                 3.9G   32K  3.9G   1% /var/tmp
/dev/sdb1             917G  289G  582G  34% /root/backup

So basically I have root and home partitions and another disk
for backups of the whole thing.

Now I got a SSD disk, about which I don't really know much.
It's a 160 GB Intel, so it should be quite ok.
The question now is how to best utilize it in my configuration?
Or if I should just find other use for that?

I'm thinking for copying the whole root to SSD. Maybe have
40 GB partition for root and the rest for home. I have more stuff on
my home partition, but the active stuff is much less. So daily
used files would be on SSD and archive stuff on hard disk.

Should I worry about the longetivity of SSD? Maybe set noatime option,
but do I really need to deal with other filesystems than ext3? What about
/var/log and other places where there are lots of writing going on?

Pasi