My car has no roof rack of any kind, just a smooth roof.

I'd like to get a rack to put on, as well as the accessories needed to carry a bike, and possibly a roof-mounted luggage rack.

Has anyone done this themselves? I assume it would mean drilling through the roof of your car? I'm somewhat hand around the house & car, but no expert (change bulbs, spark plugs, serpentine belts, alternator, etc, on my old car....I've installed a roof-mounted antenae on my home roof a few years ago which involved drilling through my roof...and no leaks yet!

Any advice on a decent affordable rack set-up?

THANKS!