Hi salsaman

I just downloaded GoodReader for $0.99. You can set the iPad up as a network location on your PC, then copy (pdf) files over to the iPad and read them using GoodReader. Quality is excellent.

No foot pedal and relatively small size of the iPad makes it hard to use sheet music in a live situation; I hope Music Reader has some kind of half page turn option. But if you wanted to read pdf files, e.g. manuals it's a piece of cake!