Hello "boys" welcome to my land of nutters ... be sure to register as a Linux user and join my FREE club for insane Linux users, we have 2 members.
The best place to look for ANY Distro is ...
http://distrowatch.com/ ... on the right column you'll find a compleat list of "flavours" for your enjoyment.
May I recommend you stick to the top ten on the list ... all have a "liveCD" you can try out on your PC ... some of those Live CD will also install a full version on your PC. However, some Live CDs will not let you do much but play on the internet or check to see if your PC is compatable.
I do not recommend "Dual-Boot" if you
value any data on your PC ... Dual-Boot can and does go wrong and in some cases will entail installing from scratch. For most part Dual-Booting works well.
If you are a games player, Linux is not for you, if you think Windows, Linux is not for you, if you are not willing to RTFM, Linux is not for you ... if you wish to try "something different" then Linux is for you, if you are fed-up with viruses, worms, spyware, then Linux is for you, if you wish to Learn how an OS works, then Linux is for you.
I know very little on Linux, but it does what I need my PC to do, and does it without crashing, without complaint and completely and utterly FREE.