Visual Studio 2012

[Lloyd_mcse]

You can download a 90 day trial from

Microsoft Visual Studio 2012 - Downloads

And the free Express Version from here

Microsoft Visual Studio Express 2012

[Lloyd_mcse]

Quick tip if you need to deploy Visual Studio 2012 updates and SDKs on multiple machines, you don't really want to download them each time.
Lets say you want to install the VS2012.2 update on multiple machines, download it once by running

C:\Users\YourUserName\Downloads\VS2012.2.exe /layout

in an elevated command prompt and you will be asked where you want to download the files too, put them on your file server or NAS drive and you have them ready and waiting for the next PC.