Can use IDES version for ABAP development environment

I have gotten a problem...

I just begin study and work in ABAP field.

Our customer ask us for building a development environment in my office.

But I do not know that what is a proper SAP version for ABAP development environment ?

I have had an IDES (International Demonstration and Education System). But I don't know I can use this one for development ???

Please advise me !!!

Many thanks,