I bought the Basic version and ended up buying a 140mm top exhaust fan.
I do see a use for the SSD tray in the future.Wish i had one now.
Imo it's a no- brainer to buy the Advanced version.
A good 140mm fan will cost at least $15 after taxes.
Plus i think SSD's will be very affordable and mainstream sooner then later.
I think by 2012 most customs builds will have at least one SSD.