What you need depends on what course you plan on taking. If you go with a 100 Watt Mercury vapor Zoomed bulb, you will want to go VERY light on the calcium powder, and VERY VERY VERY light(once a month) with any D3. Think of the D3 in Rep-cal or Miner-all as a substitute for sunlight exposure, a mercury vapor bulb and fixture(about $40-$50 for the bulb, plus $10-$15 for a good ceramic fixture) is pricy, but a much better, and EAISER and safer alternative to the sun. Where the Reptisun puts out 5% of the sun at a foot, the MV bulbs put out 20-50% at several feet. You CANNOT rely soely on the reptisun, but you can rely solely the MV bulbs.
I would get Herptivite for vitamins, and use it about once every week or two. OR mix it in the cricket food. Rep-cal has a lot more D3 than minerall, but less trace minerals, so if you plan on getting a MV bulb, I'd get minerall. You can get it without the D3-that would be better if he's got a MV bulb, if he has sunlight, or a MV bulb, too much artificial D3 with a calcium powder will lead to calcification of the organs, and vitamin/mineral imbalances, and a lot of problems.
Too much vitamin A can lead to lots of problems as well, so stick with Herptivite, it uses beta-carotene, not pure vit. A--they wont overdose on A.
When he's a bit bigger, in a month or so, go to Home depot or lowes, and pick up a small sheffelera, they seel for like $5 in the summer, and are perfect for veilds.
You NEED a source of D3:
a.either Sunlight(not reliable up north, so I would count it out)
b.calcium powder with D3 works great, but easy to over/under dose.
c.Zoomed powersun Mercury Vapor bulbs. Provide as much UVB rays as needed to meabolize D3 & calcium. Provide heat, and last longer than reptisn bulbs. expensive though, about $50-$70 to get the bulb and fixture. Also, only come in 100W sizes, so it oculd be too much for the little guy, unless kept at a distance.
overall, your best bet is the MV bulb, but you could also use a D3 poder, like rep-cal, for a few months, then switch over to a MV bulb. this is good, especially if you are unable to get the bulb right now.
ERic