You will be fine with 512 ram.
Im ok with 384 ram.. And even at a day i had 7000 visitors, server loads where below 0.3 all the time.

Try this host: http://byethost.com/vpsplans
Im with them for the last 3 years, 110% satisfied.. (Not offshore, stay legal and you will be cool.)
Maniac_ Reviewed by Maniac_ on . Will I Buy a VPS from WebTHosting or Not ? Hey Guys, One of My Friend needs a VPS and He said webthosting VPS Packages are Cheap and ofcourse they're famous... but i would like to ask you guys alot of people are saying that they're scammer so is it true ? and will we buy a VPS from WTH ? Post Your Thoughts. Thanks! Rating: 5