Just got my Blue yeti and it arrived one day earlier than expected It's kinda pricey but well-worth the money!
I wont get that one cause i here alot of bad reports on them, but i will most likely get the yeti pro
Yeti pro is exactly the same just with an XLR output http://en.wikipedia.org/wiki/XLR_connector Doesn't have any better quality sound
Just to be a tease I shall never acquire a microphone. Get rekt anyone who wants to hear my voice for some reason.
Yeti & Yeti Pro have the same capsule set, meaning they sound the same. The difference between them is the output (Yeti = USB | Yeti Pro = XLR). If you have phantom power and an audio interface, get the Pro. If you just wanna plug and play, get the standard. Personal experience of having a Yeti is: Sounds decent, very sensitive, pop filter is NECESSARY (just like any cardioid mic) & the bass/low end it picks up is pretty minimal.
When I was looking at photos I thought it was way smaller than it actially is. Came as a shock to me when I got it, but I still love it.