I@m not sure if these are out in the UK yet, buy just read a review on Anand Tech and seem pretty slick: ther reviewer says "the 712A is essentially a 708A on steroids".
Plexy have bumbed up the buffer to 8mb again, and the original release will be PATA, but other revisions will be SATA.
The DVD-R is still at 8x mind you and the DVD+/-RW was left behind at 4x, but they've upped the CD buring speed to 8x.
Out of 9 piece of media, they only managed to get 2 to run at 12x (not bad since all the disks were rated for 8x use methinks), and one particular ricoh disk only did 2.4x .
So what'll be the cost of owning one of these babies when the're out? $200 in the US, so we should expect these to retail at about £500 in PCW