Hey ftcarer,
They are looking pretty good; stiff stalks; nice coloring; no noticeable leaf disfigurement. I've never heard of these strains, but looking at the leaves I would guess them to be Indica dominant?
I see that they have just popped the second multi-leafed internode. I typically put my Indica dominant girls into veg after the 6th or 7th internode, 5th if a Sativa. With Indicas, I usually cut off the bottom two branches either just before or just after placing them into flowering. I trim off these branches because they receive the least bit of light and typically under-produce, therefore I consider them to be nutrient and oxygen thieves.
joeuk might have something with light distance, you might want to consider placing the lights a little closer to slow down stretching. If you are using CFL's, you can almost let them touch. Just make sure the temps don't exceed 90F (shouldn't with most CFL's) or the plant may start to burn. May I suggest thinking about purchasing a 250W Metal Halide bulb for vegging. The better the light source, the better the results, all things considered.
Also mentioned is the growing medium you seem to be using. I agree that a mixture including vermiculite or perlite or sphagnum peat moss, or cocos may be the way to go. The point(s) about using the materials mentioned is that they enable better oxygenation of the roots, moisture retention properties, and root growth.
Happy farming and keep us posted.