If you put too much light on your clones they'll try and grow leaves rather than roots.

I use 2-18" 15 watt fluoros in an old desk lamp. I keep it a foot above the cloner, and my cloner's translucent so the clones just get a dim glow. Just enough so they know it's not "night."

Coincidentally, I just picked up one of those bulbs from Walmart last night. Looks like they'd be great for the first week or two (after we get some roots, that is...) Haven't tried it yet, though...

I'm not sold on Clonex. It goes bad if contaminated. Also, if you leave too much of it on the clone it dissolves the stem to mush; the clones fall right over. I've had 100% success since I switched to Dip 'n Grow (thank you, Stinky :thumbsup. It's cheaper, too.