For a new logic board, $650. For the labor, $150. If the drive itself is bad too, another $340. For that, I could buy at least one Mini, possibly two.
So, yeah. I don't think Apple will be fixing Cygnus. I'll either cope with the broken USB port and lack of drive, or I'll try to find a logic board elsewhere and install it myself.
Meanwhile, I'll have to resist the temptation to buy a Mini. Having a desktop mac I could sync my various synced things to instead of my laptop would be nice. Syncing the laptop off it would be important tho.
Edit: Hm... $140 to buy-it-now. What do you think?