If it is a newer video camera it should have came with a cable, or atleast have a firewire port on it. You may need need to buy a firewire card for your computer if it doesn't already have one. Otherwise, you might need to purchase an additional video card which has rca inputs, but you might end up with a lot of dropped frames that way. I'm sure if you post up the exact model you have, one of us can look it up and see what your options are.
Sebring Silver SS #1881
M6, 408ci Iron block, Dart heads, 253/261 644/624 110, Textralia z-grip, BMR: SFC, STB, LCA, DSL, Panhard Rod; ASP, Pro 5.0, MTI clear lid, TTS LT's, LSS, Hurst linelock, 160 stat, FTRA, Ported Fast 90/90, Billingsley 9" w/4.30 gears & spool; TSP duals, Corbeau CR1's, Cobalt tach/gauges, Focal speakers, LC-1 Wideband O2
505 RWHP / 465 ft lbs (still being tuned)