I've made a little spreadsheet for you ^_^
You can use it to find the optimum chain length (chainLen) and unique chains (euc), number of tables (numTables) for a rainbow tables set.
update v2 : added a "testing area".
update v3 : added RTO size and RTIv1 size
update v4 : fixed generation time and added links
read more : http://a2480f25.blogspot.com/2010/08/ra ... elper.html