Robert Castley wrote:
There is ConceptDraw (PC & Mac)http://www.conceptdraw.com/en/products/cd5/ap_visio_mac.php?utm_source=website&utm_medium=468x60&utm_campaign=MacMinute <http://www.conceptdraw.com/en/products/cd5/ap_visio_mac.php?utm_source=website&utm_medium=468x60&utm_campaign=MacMinute>But your best bet is Kiviohttp://www.thekompany.com/products/kivio/?PHPSESSID=18105eb594b5ac55eaad5cd3bf925916
For the Mac you could always try: http://www.omnigroup.com/applications/omnigraffle/ There are a few other product there too that could be useful.... HTHs Col