I think the bigger question here is can Jameer actually stay on the floor?
Granted he got all-star in 09, but I really don't think it was warrented whatsoever (from memory he only played 40~ or so games that season?).
Frankly I just think Jameer is overrated in his achievements, but he's not bad.
Solid, but not an all-star.
Can a motivated and inspired Nelson take Magic to the next level? He was an important cog in their machine during their championship run, but he's not the same player he once was.
You also have to take into account he's 30 and it's hard for PGs every season from 30+ (as younger quicker faster stronger guards just blow right by you on defense).
Definately Magic is going the wrong way chasing after Steve Nash. If they had another 2-3 years of a championship window before it closed, by all means grab Nash.
Otherwise they're just getting older and wasting assets and talent on a guy that will probably retire in 2-3 years.