You can also have a look at Yoper, a nice i686 optmized distro.
www.yoper.com
Tried it once and on my Inspiron 4000 (p3 800, 256 mb ram) it was quite fast. Faster than JAMD (which is great, BTW) and Mandrake, IMHO.
It seemed to come customized for a desktop setup (numlock on by default) and at the time I had no patien... errr time to fiddle with it.
Support (for free) seems shaky, but Linux is Linux everywhere.
NOTE: JAMD really is great for newbies who don't want to fiddle with installing apps and just want an pretty, easy to use Linux. I did not see any noticeable performance jumps from the i686 optimizations. Strangely, Yoper seems to do better in that dept.