Actually, you might want to see what your owner's manual says in regards to cleaning the cabinet. Like the others have mentioned, Windex and harsh cleaners are a no-no. I can't comment on the Endust for electronics - however, it could be a mild enough cleaner and also the anti-static additives might prevent some of the future dust from being attracted to your receiver. I think owning a Pioneer Elite receiver is quite a challenge in regards to finger prints because of its 'high gloss' black finish.
To play it safe, you could use some very mild detergent mixed properly into some warm water. Then, just use a small corner of a very soft cleaning cloth for wiping down your gear. If you're especially picky about keeping your gear scratch-free, you might want to head to the local auto parts store (or even Wal-Mart) to pick up some micro-fiber towels. The towels will be very, very soft and lint-free. Personally, investing $5.00 in a few good towels of this nature might be the first step you take in cleaning your receiver.
I just use a dry soft baby diaper and elbow grease. I do this for my high gloss speakers and the front of my components. It takes a bit more work but there is no residue of any kind.