Thanks HR.

After doing some further reading I'm confused about the requirement of using torque wrenches for installing the bottom bracket and crankset. To further compound this, I'm confused about the use of grease. Some threads I read indicated that torque specs imply no, or little grease.

1. Do I need a torque wrench in order to install a crankset or bottom bracket or can I just tighten it manually.
2. Are torque specifications relative to the amount of grease used on the threads?
3. Since this is my first BB job, would I be safer leaving this job to a bike mechanic?\
4. Can I just purchase any torque wrench off eBay or Amazon or does it need to be a bike-specific torque wrench? (some users recommended the Ritchey and Park Tools wrenches).

Many of the threads I read seemed to indicate that torque wrenches are only really necessary when dealing with carbon components, but every once in a while someone will chime in and contradict this. Since this is my first BB job, and I don't really have a way to gauge correct tension. I feel like I'm epically failing at this DIY. OTH, I'd rather fail if the other alternative is damaging the bike, components, or having an accident due to improperly installed equipment (which would ultimately bring me back to the mechanic as well).