welcome rob. your not the first and not the last to find out little community here. since we welcome all there are plenty of discussions on the different makes, models and their pros and cons if you are willing to scan back a bit in the general section.
the best way to pick a car is to think about the following:
how big/tall are you?
will this be a street or track car?
do you like low end power or top end power?
do u think you will ever be caught in the rain?
what kind of emissions and inspection system does your state require?
are you mechanical and can you fabricate?
and of course, how much money are you willing to put forth?
7's are all fantastic but getting the right one for you is like buying shoes. you will need to try a few pairs on before pulling your credit card.
good luck,
Roman