Adobe has Flash Builder (based on Eclispe) to ease the development of flex applications .
Check this link to get
Standalone Flash Builder or from the drop down download Eclipse plugin.
Developing applications through Flex SDK is not that much difficult.
Good, Better, Best, Don't take rest until, Good becomes Better, and Better becomes Best.
Sidd : (SCJP 6 [90%] )
Joined: Dec 09, 2010
Peter: i am using eclipse 64 bit version Eclipse IDE for Java EE Developers 188.8.131.5200617-0521 epp.package.jee
Rob : I think the link gives me a 30 day trial version. But if i use the plugin its open source right??