That is interesting rooperi, I also thought d4 was a bit more popular, but I thought it was because the sicilian... I'm also surprised 1...e5 is more common. How did you get these stats, from chessbase or something?
I'm in the process of trying to download the complete TWICS. It's a pain, because you have to download week by week. And if you live in a country where they have a data transfer race, between Pietermaritzburg and Durban (90km), where the contestants are an ADSL line vs a carrier pigeon, and the pigeon wins (true story) it takes a long time :( [edit: and where I am, I don't get ADSL, I connect on my cell with EDGE]
Then I just pop them into SCID, adding the new files as I get them. And you can ask SCID anything. I love that program, don't think I've opened chessbase for 6 months. I have not even gotten around to install it on my new PC.
Also, there are several ways to play 1.e4 and discourage Black from playing his favourite Najdorf, without putting yourself at a disadvantage. If you want an advantage as White, you have to allow the Najdorf.