Thanks guys this has been a lot of help on clearing up if that type of bike would be suitable for my needs. The point about GA summer heat is very true it does get pretty hot and I can see how a backpack would get hot, it definitely does just walking. I guess it is really just up to me - too many decisions! But the general opinion seems to be than an older road bike would be perfect for the commuting i need? Since really I am just trying to get from point A to point B with a backpack on as quick and easily as possible.

With that being said, since I am new to road bikes, it felt much different than I am used to the first time I hopped on one the other day. I think it would be fine to get used to though once I got out riding --- yet on the other hand some people have recommended looking at hybrids because they offer the upright seating position and are just all around more versatile --- any thoughts on that. Also, What are you guys' opinions on downtube shifters for a beginner?

Thanks for the help it is much appreciated to get many opinions from different people because trying to make a decision