In 4 1. Guess it's time to return the 120GB 840 I just got yesterday. Paid $99 for that one. Needed something a bit bigger for my HTPC boot disk so it can hold some assorted games too.
I've been running the 830s RAID0 in my desktop for a while now and love them. Kind of wanted to switch to 840 Pros for the desktop and move the 830s to the HTPC but I really don't need it yet. I think I'll let the desktop sit until i can get to 1-2TB level on SSDs without drive caching.