Hi Luis, My best bet would be VMWare Fusion. Everything can be done without any sighted assistance, and the software itself is pretty accessible with Voice Over. For me the best feature of VMware is you can install any windows operating system independently. You just need the Installation disc or ISO files of the Windows OS, and then follow the steps by step guide from VMware, and it will do anything for you. you don't need to do anything on the process of the installation. Actually, I'm currently writing this on a Windows 7 virtual machine with NVDA on my iMac, and I must say I'm very please. Good luck!