I use a HP XW8600 with 8gb of Ram check here
http://www.caldigit.com/Testimonials/SyncFilms/index.asp
I think the Cineform and timeline monitoring is being worked on for CIneform to support using the Blackmagic cards to import/timeline monitor the footage like with the AJA Xena cards.
Sounds like you just need to import Betacam footage, and monitor your HDV footage from the timeline. Decklink Studio looks fine for what you want to do. Also has the HMDI connections as well.
I was reading on the forum a user was using this setup with good results.
Motherboard: Gigabyte GA-EX58-UD4P
Cpu: Intel i7 920 D0 stepping
Graphics: Sparkle Geforce 9800 GTX+ 512Mb
Disks: 5 Sata Internal Disks
Memory: 8Gb DDR3
Thanks,
Leo
