I use Camtasia Studio and love it. As with any video app, lots of RAM and a fast CPU make for a better experience, but I've used it with no problems on a machine with only 512MB memory. To give it a fair evaluation be sure you're using version 3.x. The current version is 3.1.2 (I think).

>I'm looking to create some video files (via screen recording), on average 2-3 minutes in length.
>
>I looked at a trial version of Camtasia several months ago, and wasn't as impressed as I thought I'd be. I had a few lock-ups with it, and even when it did work, it took a significant amount of time (and local disk space) just to create one short sample video.
>
>Maybe Camtasia has gotten better - just curious if anyone has tried it, or competing products.
>
>Thanks,
>Kevin