I also have a 690 and think it's great for a gaming case but definitely still has shortcomings...
Plenty of places for fans
Loadsa room for mutli gpu setup
Fairly decent cable management
Probably more stuff that i can't think of...
The tool-less mechanisms (PCI, 3.5 and 5.25") leave a lot to be desired
The two side fans on the 690 tend to make the whole side of the
Oh yea, and to add/remove 5.25" devices you need to remove the whole front panel... which isn't easy and if you're not careful you might break one of the thin plastic pegs that secure it to the front frame of the case
So am I to understand that the CM 690 is great, but the K60 is even better ?
The only thing bothering me about the K60 (besides the lack of reviews) is the lack of front (or rather top) eSata and FireWire connections. But to be honest, as of now I don't have any devices requiring either. And even If I have someday, connecting them to the rear panel would probably not kill me...