A summary of tools available at ProZ.com
Invoicing for translators
Easily create, send, and track invoices online.
Translator group buy (TGB)
TGB is a tool offered to give an opportunity for translators buying CAT tools and other software together to get a lower price and realize significant savings through group buying.
This tool calculates the average rate you must charge to achieve your desired income, based on the assumptions you have entered. Bear in mind that in any given market or area of specialization, the going rates may be higher.
A quick look at the features available at ProZ.com