For soil I did a (thick) inch of Organic Miracle Grow Potting Soil and a (also thick) inch of pool filter sand. I've had some diatoms, but nothing I'm too upset about, and some algae on my plants (a pain in the butt but nothing more). It's good and the plants LOVE LOVE LOVE it. I've had crazy growth and my swords are going insane. Hopefully my dwarf sagg will get the hint soon... You have to spend some time making sure you have the sand cap on evenly and make sure you don't have any thin spots. I had a problem with this (resolved for the most part) and a lot of the woodier parts of my potting mix came up from underneath. It's a pain and something you don't want to deal with. I didn't add anything special because of both budget and I believe that soil provides most of the essentials. If you have any more specific questions, I'll do my best to answer them.
As far as hatchets go, my LFS is limited in what it can get in and the last batch of hatchets (10 in all) had absolutely NO will to live and keeled over slightly after arrival. I work at the shop so I know it was just stress from shipping.
Poor fish. If we can get in a batch that can make it in the shop for a week I'll put them in my tank, but until that I'm not too worried about anything jumping out.
And college is going swimmingly.
Only 1000 more years of sweat and toil until I can join the workforce.