If you have Pro Evolution Soccer 2011 for the Playstation 3 (EU Version) and want to play with Bayer Leverkusen and other Bundesliga teams I recommend Cristiano92 Option File:
It came out on Sunday and still has some minor faults, but these will be corrected over the next weeks. You will find more information and periodic updates in the abovementioned link. At the moment you have to download both Base and Add-on file and copy the extracted files to your Playstation 3.
Option Files for other PS3 PES 2011 versions (UK, US…) are also available on pesgaming.com, just browse through the Forum to find the correct one for your region.
For the PC Version try this (read pdf instructions): pesedit.com
If you want to include Chants in your game (this is applicable for Fifa 2011 and Pro Evolution Soccer 2010 and 2011, all use mp3s), there are several collections:
If you hear them too low in your games, you can increase the Db with mp3gain.
Dates and times of Bundesliga fixtures 12 to 17 have been published today. The Google Calendar has been updated accordingly.