
How important is it to get ECC memory.
Try using the forum search for 'ecc' - there are lots of relevant posts, e.g.:
http://forum.hauptwerk.com/viewtopic.php?t=2987
http://forum.hauptwerk.com/viewtopic.php?t=3778
http://forum.hauptwerk.com/viewtopic.php?t=3332
An external one:
http://photo.net/digital-darkroom-forum/007OGq
Basically it just depends whether absolute stability is important to you. If the computer will be left turned on constantly and used for public performance (e.g. installed in a public place) then I personally would say that ECC is essential, since a crash or audio glitch during a performance is probably to be avoided at all costs. But for home use the risk of those things occurring very occasionally might not matter too much.