Framing photos for exhibit

Hi guys,
So I am doing my first real exhibit next week, I have 18X12 and 12X8 prints want very simple and elegant frames to hang from the wall, what do you recommend? (online vendor preferably)

Thanks.

I get all of my frames from Frame Destination :

http://www.framedestination.com

and have been very satisfied. I frame all of my images the same with a simple black metal or wood frame and a single 8-ply Pearl White mat.

I use these excellent quality and fast delivery

http://www.americanframe.com/America...tname=Standard