if the individual gigs are to provide the PA, make sure your band gives you a technical specification (i.e. what they need in terms of mikes, inputs etc) and pass it on to each individual gig organiser well in advance, and then follow it up to make sure they are actually able to provide everything your band needs - nothing like turning up to find the sound engineer doesn't know what's needed or doesn't have the right kit to cope.

Once the tour starts, make sure all parties concerned have full directions for everywhere they need to go and contact details for each gig organiser in case anything goes wrong en route.

have fun & try not to get too stressed!

Jess