... is worth the upgrade to 2010.
I have always found the mating interface in SW to be a real pain. Disliked it way back when. Hated coming back to it in 2009 after using ProE for 3 years.
Much better now*. Thank you.
-john
* Still like the PTC way better....but I'll give you guys until SW2012 to really fix it. :-)
SolidworksAssemblies