a list of video capture cards for pc, reasonable prices between S$150 and S$300
main brands are pinnacle, viewcast, and canopus. some basic information about video capture cards available here

Pinnacle Studio AV/DV Deluxe
Pinnacle Studio MovieBoard PCI Video Capture
Viewcast Osprey-100 rca input
Viewcast Osprey-230 only BNC and s-video input
Canopus ADVC-55, or bigger.

a list of more capture cards, brands, etc. with pricing and rating.
video capture card list