Do they

do a sata card with 2 internal ports and 2 external ports ? also do all sata cards support cd drives/dvd drives ?

I ask because the caddies am looking at have sata on them and am looking at getting the plextor sata dvd writer along with running a sata hd in my shuttle :)

Yes ;) though you'll need to do some searching spec wise but yes there are 4 port sata
controllers with 2 internal and 2 external think the ones I saw were £35 - £40.

Highpoint 1542 :) looks like the one i want....but 85 from scan....gah no where else got them.