hey mate
JDM tank is the easiest option, but can be costly, people like to charge around 200-250 for them
there is a stack of info around about surge tanks
this is a good thread
a surge tank setup is a good "do it once, do it right solution", though expensive to do right the first time, if done right you wont ever have to think about it again.
depends what bargains you can pick up as well for the components.
heres a good thread from this forum about it