Whether or not the SCOTUS agrees to hear the case on those grounds is still up in the air. Given their lack of gonads displayed to date, I'm not holding my breath, but here's some info for y'all:
SAF Bean Brief: http://www.saf.org/pub/rkba/Legal/BeanBrief.htm
Docket information from the U.S. Supreme Court Website: http://www.supremecourtus.gov/docket/01-704.htm
Read the Fifth Circuit Opinion here: http://www.ca5.uscourts.gov/opinions/pub/00/00-40304-cv0.htm
AP Story: http://www.boston.com/news/daily/22/felon_gun.htm