Add a decent, very usable interface, very respectable battery life, excellent Bluetooth, great MIDP implementation and an FM radio, and you have a very good, flexible GSM/UMTS mobile phone that will work perfectly with your Mac - and costs a lot less than most.
Its only real fault is the lack of a memory slot, something it makes up for with a (sub-mini) USB port and a normal SonyEricsson accessory connector (i.e., it doesn't use the new, completely incompatible high-density connector that the K750i/W800 has).
And no, I won't go into music phones - at this point, and considering the relatively immature state of that micro-segment, I can only recommend the V600i's cousins. I can, however, most definitely not recommend the ROKR. It's simply not good enough as a phone - get a decent phone and a nano instead.
As usual, if you absolutely must have a Symbian phone, the N70 is probably the best bang for the buck right now, although I find the keypad too small for my fingers (I find, in general, that the other current Nokia models are a tad too expensive for the features they deliver).