Acer Netbook 521 -- FLIES with 2GB RAM and W7 PRO
I got one of those small netbooks for travelling - Acer ONE LO5021 with the faster AMD chip.
The spec says max 1GB RAM DDR3. Anyway I removed the 1 GB ram and replaced it with a 2GB RAM module -- these are cheap enough now. It works fine and the system really flies for what I need on the move -- even Photoshop CS5 is passable.
You might just find the 1GB RAM a bit limiing but you CAN replace these with a 2GB RAM module (around 40 USD - well worth it).
If you have one of these small ultra thin / light netbooks IMO it's worth replacing the 1GB memory with a 2GB RAM module. 9You can also put in a faster bigger HDD drive too -- easily accessible BTW - just remove 7 screws on the back panel, and the HDD drive and memory are EASILY acessible -- in fact EASIER than on my primary (Heavy) laptop.
With 2GB RAM you can also run a Virtual Machine or XP mode on the netbook too giving it significant more useability.
I'd also get rid of the W7 starter and replace it with something like W7 Pro or at leasy Home Premium.