crazy multiple submit problem

[eluser]charlie spider[/eluser]
is there a limit to the amount of post data you can transmit in a regular form post ?

that form has to submit 2 arrays that are each 230 units in length
the one array will contain either a 0, 1, or 2
and the other will be a table id number anywhere from 1 to around 6,000 or so

i can't see that being too big to transmit via post though

any thoughts ?