You might try a search on thie site for "video Edting". This has been discussed at some length fairly recently.
In general, There are several packages available: Pinnacle, Ulead, TMPG, Sony, and a couple of others. Windows XP has a built in editor (or you download it?, it's free though) that is pretty basic, but works.
Despite all the whining that you will hear on the Pinnacle website, their Studio 9 product is flawless for me. From capture, edit, and finally burning to DVD, I've found it's a solid product.
Pro's: cheap, full-package, and flexible on sweetening audio/video
Con's: can be pesky with slower/older pc's. DVD burners were a problem but I've not encountered any. User forum has a lot of whiners... overlook them. No video layering... just one video track on the Studio product... upgrades supposedly address that. I use Premiere and Vegas for that... but it's rare.
Use a clean pc for it... pc's with internet access are so succeptible to viral attacks, that it can often be the root problem for many mysterious issues.
I also use Avid but wouldn't advise it based on cost... I'm assuming you need to just edit chase video.