When you're looking for hardware, make sure it's compatable with your guitar first, so that you don't have to drill extra holes in/expand existing holes. Take a tuner out first before going shopping and measure it's post/nut/etc, look at where the screw holes are etc, etc. If you don't mind taking a drill to your Epi, and intend to keep it for some time, then this shouldn't matter too much, but if you think you might flog it at some point in the future, then best to leave it without extra holes etc.
Recommended hardware? Like Ratrod says, Schaller & Sperzel are good, but I'd personally steer clear of Grovers as they "feel" removed from the string, IMO o'course. I would highly recommend Gotoh hardware though, especially the stuff made in Japan, and if you're looking at replacing the stop tail & tun-o-matic, have a look at the TonePro bridge/tail sets.