I have been using PCLinuxOS with the LXDE desktop for years. The menu/layout is very windows like and it is easy on the resources.
At
distrowatch and you can see all the latest flavors of Linux.
You can always download ANY iso. and burn it to DVD or USB Stick.
If you change your bios so that the first boot device is the DVD or USB, you can run the whole distro for a test drive before installing it. Go buy a 10 pack of DVD's and give it a try.
I have tried at least 50 of the top distos and like PCLinuxOS the best because of the computer configuration center. This gives you more control over your hardware and settings.
Most distro's just set the configs once at install and your left trying to figure out what to change to tweak or fix something.
I also tried and liked:
Peppermint/Manjaro/Mageia/Solus and Puppy (installed on my old P4 laptop)
Ken