Hey i am putting a rebuilt eaton supercharger on my 1998 ssei and i keep reading about people putting different pulleys on for better speed is this something i should consider since it is being replaced? ANd what size should i get? thanks

Unless you have a few other mods, as well as a good running motor (not needing any standard maintenance) I'd suggest no more than a 3.5.
The mods you will need at the very least for that:

Cold air or Fenderwell intake
High Flow catalytic convertor
180* thermostat
colder spark plugs (autolite 104'* area good one and gap them around .054"-.057")

Also, a scan is always a wise choice. It may tell you whether or not your car needs ported exhaust manifolds or something else.

And one thing for sure, ESPECIALLY when changing from a stock pulley -ABSOLUTELY NOTHING SHORT OF PREMIUM UNLEADED FUEL -no regular or mid-grade or you'll more than likely melt a piston.

is the gain enough to make it worth it?

It will give your car a bit more kick. A new press on pulley is about $60, well worth the price.

is there a reasonably priced intake you would reccomend

I built my own. You can get a rice pipe. Then it'* just a mater of shielding the filter off from the heat of the engine bay.

are there any pics of this anywhere i can do it it would just be nice to see one that has been built for a reference