Since the strange lack of updates for Fraps (it does not work on 10) I went looking for an alternative.
Having learnt my lesson before I felt commercial ones were the safest bet - CamStudio, Debut and many others install malware or a lot of junk.
Anyway, found this :
http://www.bandicam.com/It's $39 or about £25.
I haven't bought it yet - I'm trying out the demo.
So far I've only used it to help make that video about TalkTalk. But the screen recorder works well and will also record audio. It worked fine with the sound card and video card. You can capture a region on the screen easily, which is what I needed.
I've yet to try out the game recording, but thought others may be interested in it.