I can empathize. There always seems to be so much crap you have to buy just to do simple things. I hope you're able to find a reasonable solution!
Originally Posted by dave454
Another good idea, but Mixers are even more expensive than a Q3, which as todd said will record the video and audio simultaneously.
I think I'm gonna have a think about it and the budget I can realistically put forward to a bit of fun on Youtube. I'll probably save up for a Q3 or mixer, as midi to USB with garageband drums isn't going to sound the best.