Hello. After a very frustrating time playing with the Vidblaster demo I've come across vMix and will give it a try.

However I won't get chance to do that before the new year, and I'm impatient so it would be useful to have any insight from folks here about what I'm trying to achieve.

System is for use in a church, I want to be able to mix between computer output (for words and powerpoint) and SD PAL cameras without losing quality of the computer output.

So my plan is to capture the computer input at 1280x720 using Blackmagic Intensity Pro and the cameras using Videum 4400. Output would be at 1280x720 using either a second intensity card or a spare VGA output.

The main purpose for this system will be live vision mixing with recording and streaming being desirable things that I know I'm going to be asked for, which is why I'm interested in looking at a software route... Also, there's no money to do things properly with SDI and an ATEM or some such.

The hardware I'm currently playing with is a Core2quad Q8300 on a nice Asus board with plenty of Ram and windows 7. Video bits are the Videum 4400 and the Intensity. GPU is Nvidia 8400GS.

I'm happy to look at upgrading this hardware as necessary, certainly vidblaster wouldn't do what I want without a Sandybridge i7, but my experience with Vidblaster has been... somewhat negative. I've spent days on it and can't even get what I'd consider an acceptable picture out of it at SD PAL, so frame rate has been the least of my issues.

So here I am. Any thoughts on the above ramblings gratefully received.

Matt

Thanks Martin, I'll look at getting a better GPU. Is there any preference between Nvidia and ATI cards?