Having sought the help of a professional photographer friend, I've now managed to make massive improvements with the lighting techniques for the green screen - two examples shown below from a stills camera :

The couple of minor creases and shadows aside (I'm not worried about those as the test was quite rushed and they can be dealt with later) I'm quite happy with the lighting for the shots.
However, the video camera we're using is about 5 years old and unfortunately it would appear not up to scratch. It's a Canon MV 600 and is only capable of 720x576 size footage at what I understand is around 0.8 megapixel sort of quality.
When I'm dropping the video into VS, the quality of the "presenter" footage is nothing short of abysmal. The footage starts to pixellate, the colours are horrendous, the clothing seems to be a light grey instead of black, and the image is absolutely nothing like the stills camera quality from the photographer who helped me.
Unfortunately, we're on an extremely tight budget - we're talking close to zilch in fact - so any new camera is going to have to be bought as and when we can save up the funds to buy one.
I'd be very grateful if anyone could give me some help with what specifically I'm looking for in the spec of cameras to be able to produce a much higher quality recording than the old camera I'm using now. I wouldn't have a clue what to begin looking for among the thousands of cameras out there when it comes to the technical specs of them. I'm assuming the megapixels side of things is important but that's about as much as I know.
Thanks in advance for any pointers - and apologies for the lack of knowledge...
