There are TWO choices for OSX boxing? O.o

I'm not looking to do any serious dungeoneering or BGs or anything. I just want something that'll handle keysending between 2 apps, like what I was used to with HKN on PC back when I was into it. My main use will be leveling a pair of hunters (they were fun to MB in the past) to boost my current lowbie up to 80 so he can be a decent farming toon. I'll also be using the grantable levels to jump a bank alt up to 80 so she can finish off her JC, giving me double the number of tokens to shop with.

Both Plexer and MultiLaunchBox look like they'd meet my needs for running 2 copies of WoW on one Mac. I'll grab the trial of both this weekend and see how they go.

Owen, thanks for the tip on Lion.

Norrin, thanks for letting me know about other options.