Newbie with Questions

[steelerfan]

I have been out of the hobby for a while and have a few questions.
1. Are there now different sizes of men and fields, I ask because I keep hearing about the 67 big men?

2. where is the most trustworthy place to order prepainted NFL teams and College teams.

3. Where is the best place to order buy stadiums. Custom made and what is the difference between a "380" field and a "620" field are they different sizes?

4. If I have been reading right some leagues use dice to decide passes other actually use the quarterback, which always seemed very difficult to me when I was younger.

5. Is there a reliable place to buy custom made players?

6. does everyone use the bases these days with the little dial?

Sorry for so many questions, but there seems to be a lot going on these days in Electronic football. Any other suggestions are welcome. Thanks in advance for any help!