I see you have the excellent handbrake for video encoding, in conjunction with this I use ProjectX for demultiplexing .ts files from my PVR and Cuttermaran which is great for editing digital video. To bring the images and sound back together ImagoMPEG-Muxer is also a great little app.
http://www.videohelp.com/tools/ProjectX
http://www.videohelp.com/tools/Cuttermaran
http://www.videohelp.com/tools/ImagoMPEG-Muxer
I also like SyncBack Freeware V3.2.19.0 for backups - very customisable, can be as simple or complicated as you want.
http://www.2brightsparks.com/freeware/freeware-hub.html
Sorry if this one s been added already but CCleaner to get rid of all the junk your pc accumulates and the remnants of cr**py software that doesn't uninstall properly. Very safe and does not corrupt your registry like more aggressive cleaners.
http://www.ccleaner.com/