Don't just give up, though. While I agree completely with you about "megachurches," and I won't say that radio ministries like MacArthur or John Piper (I think he has a radio broadcast) or The Wesleyan Hour (www.wesleyan.org/twh/) don't do a lot of good, you need to have interaction and involvement with other Christians in order to grow, as well (Hebrews 10:25).
Try to find a church in your area that you can tolerate. Or heck, if you have a group of like-minded Christian friends, I suppose you could set up a house church--meet at someone's house and speak about what the Lord's done in your lives this week and worship him together.