Tear Drop:I agree with JohnDuncan about the Gyrodec but my experiences with the SME V (and IV) haven't been so great - it is a fantastic piece of engineering and tracks extremely well, but for me it just doesn't make music, the SME M2 and 300 series are far better in that regard.
I haven't heard the SME V, but I know it's well thought of and just think it would behove the OP to compare the two when spending that sort of money.
As for the platter, I'm afraid this is one point where aesthetics outweigh sonics for me - I don't care how it sounds, I just wouldn't have it - if I wanted more sonic improvement, I'd be looking elsewhere (power supply, cartridge, different table altogether, blah blah).
And Joel - no. Get an RPM5.2, the platter is exactly the same colour as your Arcams so would match perfectly........