Relational Schema help

[dd1313]

HI GUys

I am using Visio to try and show the relational schema /ERD between 35 tables and I cannot seem to get the graphic right with all my lines crossing each other...

Is there a software available where I enter my tables with the fields and the relationships with other tables and then I get a nice relational schema..

Please help
Diddy

[r937]

Data Modelling Tools

[dd1313]

Thanks Rudy