I'm not so sure I'd feel comfortable clipping expensive mics to a drumset.  If you're spending more than $150 per mic (which you'll likely do) you may as well protect them by using a quailty stand.  That said, I have no experience using those clips, just seems like a dangerous way of micing.
To the OP, if you haven't, check out the firepod.  I hear only good things from users and use a firebox myself and like the sound.  It has 8pres, enough for mic'ing a drumset, and even a bass.
I'd mic the left and right tom/snare (depends on the setup), the kick, and 2 overheads.  If you want to add some extra dimension, use some pzms.  These are little mics that sit on the ground.  Do a left and right, they'll pick up the sound the room gives the drumset.  That makes 7 mics on the drum, and leaves one input for a bass.  Makes for a nice recording setup.
I'd prefer doing this over sending in a mix from a board since it gives you full control over the whole set while in you're recording program.
2 cents given