Yeah, I dabbled with industry but I think I'm a little too impatient for it (and subsequently that's why Poundrock is always broke as fuck haha!)
Things to keep in mind: Don't EVER sell below mineral cost. IE, average on Antimatter Ammo is 25isk a pop. You might think that putting it up for 24 isk will have your stuff sell first (which it will) but the mins to make each one are worth >24 isk - whats gonna happen is someone will buy up yer cheaper ammo and just reprocess it for the minerals.
Also, you can only see the market of the region you're currently in, SO some people either get their buddies in other regions or create alt characters to plant in other regions to compare prices between regions etc. Stuff that always sells: AMMO and Shuttles. People can really make a killing on shuttles - i'd say they average for about 9k a pop, but some people will really charge a lot for em in far off spots cuz everyone needs a shuttle now and then (and theyre fast/cheap/etc.)
If you were ever in it to win it, the boo-koo bucks come from making and selling T2 products. I think the BPO's for T2 stuff are very rare and hard to come by (think thru missions? I'm not even sure) but that's the highend money making stuff. My corps alliance just disolved a few days back, but we were partnered with a major T2 Manufacturor, NAGA. Check out their online shop (it actually works in the in-game browser): NAGA!
Lastly, blueprints can be researched, for Manufacturing Efficency (so takes less minerals to make) and Time Effiecency (so duh, takes less time :P). TE research is easy to do, but ME research is a bitch as there's always around a 1 week Queue at research stations. Whatever - shit to know!
Hessel's ingame name is THERIDE so see if u ever see him in there during yer guyzorz trials.