first off, hello!

i have recently 'migrated' over to vbulletin from PHPBB (as i found their lack of security, features, and such terrible), aswell, i could see many possibilities for a idea i had sprouted, but forgotten about due to the limitations of phpbb.
to put this as simple as i can, i am trying to design a system where it will do the following:
#1 reward users for varying actions (posting, threads, whatever) with some form of currency. i have seen quite a few mods able to do this.
#2 bridge my site into a single login, with only vbulletin, normal html/php webpages, and copper mine photo gallery. i understand a special program is required to do this, forgeting the correct term.
#3 have a mod of sort, which the currency mentioned above could be spent on, to be given a 'subscription' style access to certain pages, such as say a bonus picture gallery, or such.
that is the 'super dumbed down' version of what i am currently aiming at. i understand it is going to MUCH more complex to do, but i am willing to expend the time/effort, and likely needed money to do it. i just need to know if all of these three things are even possible with vbulletin
thank you again for any help! now to go hunt down a dark theme that isn't... yuck. :P
SabbyKat