I have got the sata raid card working under os4.1 on the A4000 mediator with no trouble so far.
its a silicon image sil3114 chip (actual # is sil3114ctu) and i got it off ebay for $17usd here:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290574197080&ssPageName=STRK:MEWNX:ITi am using it with a sata to cf adapter and 4 gig transcend 133x card so far for testing. so far so good, card went in and was recognized right off and showed up in hd.From initial quick and dirty tests,seems this thing uses alot of cpu time copying to/from its drive but this might be my imagination. seems the system gets sluggish- it could be i havent configged something right. It is NOT bootable supposedly but i wonder if there was a way to get the pci lib and drivers into the deneb flash it might be?
the sapphire radeon 9250 128MB i use was also new from ebay for about $22..and supports 5v and 3.3v with no mods.
i have a ess solo sound card coming from ebay,its a 1938 chipset if i recall,i will report on it as soon as it arrives.
mech