Beginner's Repertoire

I have just in the last year developed a growing interest in improving my chess and was very happy to find chess.com yesterday. I understand that I need to spend most of my time in tactics and endings but would like a little direction in settling upon a repertoire to guide me safely through the openings until I know what I am doing. I'll probably be playing people rated 1200 or less for a while and was thinking of this set of openings: As White- either Italian Game or Colle System, As Black- vs. 1.e4 either French Defense or Sicilian; vs. 1.d4 Queen's Gambit Declined. Again, my goal is a good tactical game without memorizing lines at this point. Thanks in advance for all responses!

I think under 1200 those are all good choices, though you'll probably end up out of book very early in the opening. I'd recommend French over Sicilian; e4 players hate it, and while some variations of it can be cramped and/or slow, if you learn some of the themes, you probably won't get overrun.

Play what you can understand best while improving your game. You can always alter or add to the repertoire later.

sicillian is hard work being so broad french is good kings indian attack is a good start for white if you are good statergy then benko gambit is worth a shot for answer to d4

French is less frustrating than the Sicilian at the "just starting out" beginner levels. During my first two years of serious chess, every good player had told me to "stay away from the Silly-san" until I was strong enough to handle the nuances (or the oceans of theory).