Any windows 7 tips?

Hey just bought a new sony vaio cw series PC with window 7 pretty big jump form my previous PC with the Xp os any issues out there that i should be aware of when using win 7 and MV? I'm a big fan of xp and know it like the back of my hand, but it's not like i really have a choice as to running Xp with my new PC. 
