Hi and welcome to Subsim
Re mods you have 2 ways to go
Install a myriad of smaller mods to suit your taste or
Go for one of the " Supermods "
WAC 2
http://www.subsim.com/radioroom/showthread.php?t=87436
NYGM 2.4 - not sure of the thread for NYGM
GWX
http://www.subsim.com/radioroom/showthread.php?t=102096
The supermods include many of the smaller mods and much more
They are a great step up from the stock game
Being biased I will have to say try GWX
New flotillas
More units
Great graphics and loads more
Read the manual
http://files.filefront.com/Manual_V1.../fileinfo.html
Whatever way you choose to go you should have SH3Commander as a must have mod
http://www.subsim.com/radioroom/showthread.php?t=101815
This link will help you no end
http://www.subsim.com/radioroom/showthread.php?t=96026
Enjoy your stay