For ..... sake I can google video editing software, I didn't asked you to google it for me. I asked if YOU can recommend me one. Recommend means "I've used it, It's good.". And first of all I wrote that I already have video screen capture soft. I asked about editing software, you know, cutting, pasting, adding background music, text etc.
Ok,I wasn't paying too much attention and I misunderstood, Video EDITING software huh, well, Adobe After Effects is quite the best there is (For the hardcore users > ), and as for a free program I didn't find anything better than Windows Movie Maker.
I am writing here for the first time so i don't know did u get some recommendation for software that u need. I can recommend TechSmith Camtasia studio. I use this software for making video tutorials and its perfect for cutting, pasting, adding some video effects, transitions and audio. Also Adobe Premier is fabulous piece of software for video editing and in combination with Adobe After Effects can me fabulous for any work with video.