Another alternative, until your ready to move up to a name board (say a Neotek, Trident, or such) maybe just augment with really good outboard and keep your Mackie, as it is pretty useful. I don't see the problem with bypassing the board eq on the direct outs, the eq isn't that great, IME. Naturally, the recomendations for the outboard depend on the application and the goal.
I wouldn't be thrilled to be working on a Mackie, but unless you can budget for a big step up instead of a baby step, I'd say save up or invest your money in other pieces you'll always need.
Bear