Changeability of Denon TT Tonearms


I believe the straight arm and s-shaped arm on the Denon DP-67L and DP-72L are interchangeable. Are these arms also interchangable with the Denon DP-59L?

Suggestions for a high compliance cartridge in the $500.00 to $750.00 price range for use in the straight arm would also be appreciated.
wepratt
I had another Denon armwand that plugged into the DP-59L I recently sold, however that arm was too long by about a centimeter.
So not all the plug in arms are interchangable.
Dear Wepratt: These cartridges are very good. Please don't " hesitate " for its ridiculous price:

http://cgi.ebay.com/VINTAGE-ORTOFON-M20-FL-SUPER-/290474887371?pt=LH_DefaultDomain_0&hash=item43a1a708cb#ht_500wt_1154

http://cgi.ebay.com/Sonus-Gold-Blue-Audiophile-Cartridge-NEW-FREE-SHIPPING-/220668549783?pt=LH_DefaultDomain_0&hash=item3360deda97#ht_1227wt_1137

Regards and enjoy the music,
Raul.