need some backgrounds

I'm looking for a graphic designer to create about 15 backgrounds for me and provide me with the PSDs. These backgrounds will need to be 800x600 in size, very high quality, and will be used in powerpoint and also in short flash movies as title screens. I will need to have the ability to edit and insert text into the backgrounds as needed. i know i can do this in powerpoint, but it'll be easier for me if i can do it in photoshop. I think anyone can do these, so I'm looking for the lowest price. I will provide more details like subject matter and specifics to the high bidder. Please send me a private message, if you'd like more details or more info. Feel free to send me links to your portfolio. I will have additional work if this designer would like to continue. payment will be through GAF.