Originally Posted by
kalniel
Getting a SATA3 hard drive isn't of any benefit at the moment, so don't spend over the odds for one. I'd not heard that about win 7 and the marvell interface - in fact the only tests I've seen with a device fast enough to show the difference seem to show that the controller is working faster than SATA2 speeds on win 7 (see reviews for micron/crucial real300 SSD).
Personally I am in favour of getting USB3 and Sata 6gbps - the former are needed for upcoming card readers and external hard drives, while the latter are needed for SSDs in the future. All of those are things I'm interested in. But you'll probably be able to get add-in cards so it's not the be all and end all.
However I wouldn't use crossfire as your means of upgrading in the future - crossfire/SLI is effective if you use it from the outset, but for upgrading you're nearly always better off just replacing the single card with a new generation single card.