Typing this on an 1810TZ and I agree. 3GB of RAM, reasonable processor, 1366x768 native resolution, 6-8 hours battery life depending on usage. Cost me £330, although I've swapped out the HD for an 80GB Intel X25M SSD which cost an extra £130 or so.

I use this as my primary machine, plugged into a 24" 1920x1200 monitor and a USB keyboard/mouse on my desk. It's easily fast enough for what I need.