Go for it man amd 64 bit is the future, a gig or ram is great, the graphics card is ok, a superdrive. I'd say go for it and the laptop makes it better.
(NOTE ABOUT LAPTOPS)
Having a laptop on your lap can lower sperm count. The reason testes are outside of the body (in the scrotum) is for the 2 or 3 degrees lower temp when a warm sometimes hot laptop is placed on the lap (covering the jewels) it raises temp 2 degrees every 20 minutes max about 8 degrees. If you dont believe me ill show you proof. Its fine if you dont want kids or are a girl...
just a little advice...
pHATe...