thanks for all the good hints.
I checked my system:
Celeron 433 Mhz
56 MB RAM (hehehehehehe)
swap is 558012 kb (ups, perhaps I should have less?)
right at the moment I am using VL 5.9 Standard Gold,
800x600px resolution with wallpaper
gkrelim stats when
cpu idle at 2%, graphic stuff like window moving, page scrolling 90%
is reading alot from disk, very slow
gkremlin says 545 - 480 mb swap free
the first thing I will try to do is installing fluxbox and opera like most of you recommended.
ah, I configured wlan0 and it is working well. However, I have to start it manually in wifi-radar every time I boot.
I made an entry in /etc/iplugd/iplugd.conf with interfaces="wlan0" but it did not help. Some ideas? Can I write ifconfig wlan0 up in some kind of general profile?