yes you certainly can.
http://people.apache.org/~vanto/HelloWorld-BPELDesignerAndODE.pdf here is a
tutoral.
1. on my experience,although using the eclipse is not the best choise because
of its bugs with its bpel designer,but a good choise as a hello world;
2. i used to make model with netbeans,but you always need some bpel syntax
because you must change the bpel in the way of text and make a deploy file
,change the wsdl of services etc. with your own hands;
3. we dev a designer using applets to produce the file which the ode needs,but
it is a commercial version.
best wishes!
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学会滑翔，宁静致远||梦依旧
