Thanks for this intro guide, I am relatively new to Tekkit and love it. Your info was invaluable to providing a fun start.
Been playing about six weeks, off an on as work allows. Have a base stuffed with machines now, a big AE system, powersuit, built a Big Reactor and a couple turbines. Got my ass kicked on the Moon (pre-powersuit, plan on returning). Just got done removing all my quarry pipes after discovering Tesseracts.
Poking into the MystCraft mod now.
Kudos to the Tekkit modpack authors, you guys rock.