The 3020e is very bright, and the built in speakers came in handy in the surround sound-less room I had to use to review it. The speakers are better than any of the other projectors with built in speakers I have reviewed, but don't expect 5.1 Dolby surround. They are adequate, and I would even go as far as calling them good, but not great. I had to keep it ghetto and use a blackout cloth to test this one, I figured it was better than projecting onto an off white wall. Most of us gamers aren't made of money, so the odds are we'd be playing on a wall, or on a DIY screen of some sort anyway. Even with the lack of a "proper screen", it still looked amazing.
This projector would work for me, because I normally game on a PC monitor, or on a TV in my bedroom. I typically use my projector for movies, television, and some Wii gaming when we have friends over. If you plan on doing all of your PC, and console gaming on a projector, then I would check out a DLP projector first. If your second priority is gaming, I would not hesitate in recommending the 3020e to you. The good definitely outweighs the bad when it comes to the 3020e, just not in the gaming department.
-Ebenezer
The Good: Very bright Great color Great shadow detail Love the Epson remotes Decent built in speakers 3D (if it is something you care about) Wireless HDMI (a feature I did not have the opportunity to try, but Pete says it works great in his 5020e review) Great warranty (2 years) The Bad: Not very portable for gamers on the go Black level is good, but not great No lens shift Lacks CFI feature (not too big of a deal in my book) The Ugly: LAG LAG MAJOR LAG