if your are capturing from digital video camera which your os recognize then, no need for any special software to caputure it to hard disk. just follows the wizard and capture in avi format on harddisk. once its on hard disk then convert it into your require format.(this will ensure there are no framerate drop, and require quality of video is maintain.)
if you want,then use easy video editing software:
ulead videostudio,
pinnacle studio plus,
cyberlink powerdirector etc
professional:
adobe premiere
pinnacle avid liquid
canopus edius.