I'm planning to buy a refurbished 20in 2.6Ghz 1GB RAM 350GB HD iMac.
Do you think 1GB RAM is enough? if not how much is?
Do you think 350GB HD is enough? if not how much is?
I do not have any experience with Apple desktops so all of your advice is very appreciated. Thank You!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic