I have a pair of shoes implies that you have, now, in your possession a pair of shoes.  I got a pair of shoes is more along the lines of saying that you received a pair, and makes no implications to whether or not you currently have them.

I have gotten implies that, in the past, you've received shoes.  I have got or I've got seem to make the implication of of the "have" alone.  But I don't think that it's proper American English in any way.  It's more of a manner of speaking than something you would write.

This is, of course, assuming that I remember my grammar team practices properly.

And, yes.  My high school had a competitive grammar team.

Yes.

I'm that big of a geek.

Ask me about Physics team.

C'mon.  You know you want to

Is it ok to use graphics that we made as signature files?  Ie... if I made myself a pretty with the cover of one of Jim's books is it going to be some sort of...  copyright violation that I don't know about?

*whistling innocently*  not that, you know, a picture of the cover of proven guilty is my sig file for all of the bulletin boards I'm on or anything...