Courtesy of Andy Lieblich (MSU #20), here is an updated RPI as of March 4th, 2013.
# 1 GRAND VALLEY (0.5945269367603612)
# 2 KENTUCKY (0.5808936369424567)
# 3 SAGINAW VALLEY (0.5647575796400338)
# 4 MICHIGAN STATE (0.5579148438367189)
# 5 JAMES MADISON (0.5334270720201053)
# 6 KENT STATE (0.5298149062153025)
# 7 WESTERN KENTUCKY (0.5266640398085711)
# 8 OHIO STATE (0.5156190516442857)
# 9 WISCONSIN-PLATTEVILLE (0.5114384390119684)
# 10 CENTRAL MICHIGAN (0.4921058134836544)
# 11 MOODY (0.4651113932363932)
# 12 DEPAUL (0.4559742012058823)
# 13 MARYLAND (0.45234419387197167)
# 14 NEBRASKA (0.4384486094713367)
# 15 MIAMI (0.4349352975990531)
# 16 TOWSON (0.4276127468372232)
# 17 BOWLING GREEN (0.4170346279657131)
# 18 RIT (0.3730787535114458)
# 19 VCU (0.34669072167846676)