I must have used a dozen or more video editing suites, from a fully licensed and updated latest version of the Pinnacle one, to a dodgy yet fully functional and updated Corel product (can't remember the name though)
I've also used a good few freeby ones and shareware editors.
I still make videos, for various websites and functions, and I tend to mix and match to get the benefits of certain features.......in all honesty though, I tend to come back to the MS free packaged software for the main bit of production, with a few addons that you can get from the windows update pages, along with Photoshop or Image ready for title pages and effects and making decent loking text overlays in the style and colour palettes lifted from the video.
Even with a pretty decent (built for CAD software and design) PC, several terrabytes of fairly fast storage and 8 gb of the fastest ram that my machine will take, the non-MS products all seem to have glitches that slow them down to a total crawl if I attempt to do too much with them.....some also produce really odd effects that just look stupid on You tube, whereas the MS Movie maker seems to integrate with YT fairly well, and renders faster than the others as well.
My advice would be to work with what you have first, learn the techniques and tricks, the file type manipulations and rendering settings, then only look for other packages to get the features you need.
For bog standard or even for good quality Hi-Def videos with some pretty neat and smooth effects, the MS stuff is perfectly adequate IMO.....having an all singing all dancing production suite can often harm what you're trying to do more than it'll benefit you, as the temptation will always be to throw just one more effect at your video 'because you can'
PS the other really really important thing is to hone your filming skills.....whilst the old adage that you 'can't polish a turd' isn't quite true, as a decent editor can make even pretty shit footage look reasonable, you will be able to produce a good film clip far far more easily if you have some quality footage to start with as raw material
