It may be time to turn to the professionals. Prints in all the standard sizes are available from these Web sites at a range of prices, and some services offer poster-size enlargements. Strangely enough, the services don't offer much choice in papers. You can expect quality in your photo paper, but there's very little selection.
Most sites offer photo storage and sharing, as well as image-enhancement tools.
Photo sharing tools often allow you to let other users order prints of your photos, and some even make prints available to the general public, if you select that option. ZD Inc. ZDNet Logo is a service mark of ZD Inc.