I haven't come to a point where I'd need to ad more ram yet, been using 4gb for a long time. I do mainly the same stuff as you, bunch of browser tabs/gaming.
Ram sold, bump! Here's a picture of the zotac ion rig attached to the monitor (I haven't done any cable management obviously)
http://i53.tinypic.com/sn31up.jpg
It's pretty hard to sell an entire setup on [H], people usually want to by parts rather than a whole rig. I'd suggest trying craigslist if you don't want to part out. If you do sell the whole rig you should be fine shipping it without adding foam (wouldn't hurt of course!) as long as...
Local deals preferred and am willing to deliver anywhere in the Seattle area.
Zotac MAG HD-ND01 Intel Atom 330 (Dual-Core w/ HT) NVIDIA ION Mini Computer $220 Shipped ($200 Local)
I originally bought this to use as a backup rig that I'd convert into a carputer but scrapped the carputer idea...
2x EVGA GTX 480 1.5GB SuperClocked $380 Shipped Each ($365 Local & $710 for the pair local) 1 PENDING
Bought these with plans of upgrading my rig but need money for my car at the moment! Both are brand new and are still factory sealed. Not registered for warranty and the newegg invoice will be...