Yes, it would be all in Tekkit. You do not need to worry about installing mods yourself (and honestly, I wouldn't recommend it), as there is an installer/launcher that will do everything for you.
This is the launcher I keep talking about so much if you want to play with it:
http://www.technicpack.net/launcher/
For those concerned about security, the launcher is open source so you can check the source code yourself. Nobody anywhere has mentioned any security problems from using the launcher, and as far as I know, nobody has found that it sends your login information anywhere except the official Minecraft server.
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Everything is overrated - <D
I would gladly take 90 whippings and be sentenced to 2 years in jail than have my account warned. - NotYou