Please feel free to join one of the following communities of your preferences and post away the hi-res pictures that consist over 800x in height and/or width ONLY.
hires_hunks for ANY male celebs
hires_hotties for ANY female celebs
hires_brad for Brad Pitt (was recently created)
hires_angelina for Angelina Jolie
Also, check out hires_drew for Drew Barrymore and hires_natalie for Natalie Portman.
I personally currently moderate hires_brad and hires_hunks.
Let me know if you have any questions. Thanks!