Think of your soul! Won't anybody think of your soul!
Lol; if you have SP2 there really is no difference in Security at the moment - patches for one, patches for the other. It may be worth you downloading it to see whether you like it technically - but you won't be able to run any nice ActiveX websites on it.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.