I have just come across Zorin 64bit Ultimate, What is the opinion of you Penguin people of this distro. I am determined to leave the bank thief Microsoft but need something complete as I am a dunce on software.
I'd say that before you think a Linux Distro can be a substitute for Windows make an exhaustive list of what your software does in your existing Windows installation.
Then, as the barbaric one has recommended, run a distro Live and determine it will do all you want it to do before making a permanent installation.
Remember that if you can't make one function work, such as your email client, look for a solution on the internet, there are lots of very helpful people out there who want you to succeed with Linux.
Accept that at some stage you are going to have to open a Console (text box) within Linux and type in what looks to be a complicated string of characters to make something work. This is mostly just a case of cut and paste, you don't neccessarily have to become a programming whiz.
Realise there are reasons Windows and Apple software costs money and domestic Linux Distros are free, personally speaking I have yet to find a Linux Distro that can do everything I can do in Win 7, and that's ignoring games, it's pretty much a given that the majority of PC games won't work in Linux, though that situation's improving.
Having said that, most Linux distros do 90% of stuff I want them to.
A typical software list might be something like this:
Surf Net
Office word
Office spreadsheet
Office database
Office presentation
Office Publishing
Office web page composition
Photo viewing and editing
Video viewing and editing
Video capture
Music playback and editing
Music recording
Computer hardware and software diagnostics
Email facilities
Scanner software
Camera software
Printer support
Mouse software
Keyboard software
Video and Music file format conversion software
Burning software including the facility to burn different video file formats to a usable DVD
And that's just off the top of my head, I'm sure I'd think of more.
My favourite for ease of use so far has been Mint 16, must admit I haven't tried anything wireless with it and have been too lazy to try and setup my scanner in it. But it does most else, including e-mail.