OT: "find" command with branch/pipe

[Andre Massing]

Hey,

Sorry this question is not directly macports related, but I would like 
to ask anyway since there are hopefully some
terminal / find /regexp experts :)
I am struggling with the find command, trying to find all files ending 
with .h or .cpp in a certain directory.
On my former linux machine the following worked as intended:
find   ./ -regextype grep -regex '.*\.\(\(h\)\|\(cpp\)'
but Apple's find command does neither know the regextype option nor does 
it work as expected if I omit it. I tried already different kind of
grouping and escaping but without success. Has anybody an idea how I can 
get find to work as intended?
Thanks for any pointer or advice!

Cheers,
Andre