Which Tone Arm for Oracle Delphi + Grado Ref?

I've been using a Well Tempered Classic with a Grado for years and just a few months upgraded to the high ouput Reference. I picked up my dream table, an Oracle Delphi Mk4 a few weeks ago and now would like to find the right arm for the table and Grado.

Any opinions?

I love the look of the SME 3,4 and 5, but have heard that they may note be ideal for the Grado. A friend suggested the Morch.

Any advice would be most appreciated. Anyone out there experience any of these combos?