<font color='#000080'>Budget Video..... (Sorry but those 2 words just do not go together

)
Best advice, look at the housings Ikelite, Birchley Products...
http://www.camerasunderwater.co.uk. Find a cheap housing and see what camera(s) will fit.
Avoid Gates, Lights and Motion etc... (Great housings but you did say budget

)
Also keep an eye open on the boards, I have seen a few setups for sale.
Daz
__________________
Underwater rock juggler extraordinaire
Breathe in, breathe out. Repeat as necessary