sure...I have done it all the time. Its the sandwiched ground plane layers you really don't want to cut up, if its multi-layer. Shawn Wilton wrote: For example, is it considered OK to place a power fill plane on the same layer as some of your digital I/O? (None of this is high speed). I'm hoping maybe someone has a list of things I should watch out for. I know there are some guys on here with *years* of layout experience, so I figure I would poke the grey matter a bit before sending off this board. -- Shawn Wilton (b9 Systems) http://black9.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --------------------------------- What are the most popular cars? Find out at Yahoo! Autos -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist