Yes, you can get both Mac and PC - once you download and expand the files, it becomes duel platform.  If you need to download again, you can switch your platform on your e-on account. 

On my Windows 7 machine - I have a desktop gadget that lets me know how much memory is in use and the CPU load. 

 

LVS - Where Learning is Fun!  
http://www.lvsonline.com/index.html