reply to morisato
Re: A question about Linux ISOs, No Really LINUX ISO's For real! Most people coming from Windows are going to find the learning curve with Ubuntu to be quite friendly. There is a large support community to help you along the way and a ton of software packages available.
There are many of different flavours of Linux, I'd recommend you try a few before deciding for yourself. The suggestion of using VMs to test-drive different distributions will make this much easier.