Hi Bruce - I'm not sure what you want to do - simple trimming and maybe splicing and/or doing captions etc. I use the built in editing in Windows to just do simple trims - not sure if you can do a join/splice. I think you can also do some simple editing directly in YouTube after you do uploads. I use Race Render (full paid version) to do picture in picture, joins, and more. You can also overlay data from various sources using Race Render. It's a popular option. There is a free/test version you can try. The learning curve is pretty easy.
See you at the track!
Allen Massey
(the other East coast # 111 guy