My Knee... Went to my family Dr. yesterday, to have him check out my knee... I'm suffering from Prepatellar Bursitis... Basically swelling of the Prepatellar Bursa... Caused by the direct trauma (landing on the stairs, ouch!) It will heal on it own, but I need to rest it as much as possible, avoid doing anything that makes it hurt (like kneeling), hopefully within another month it'll be good enough that I can start playing indoor soccer again!

Here's a great site with TONNES of info:
http://www.emedicine.com/pmr/topic118.htm  ¶ 10:09 AM