As others have said, look at something in between.
A 460 to 372xp is quite a jump. Not only in power/speed, but in price also.
Im not sure what your experience/skill level is, but a 372 is certainly not for a beginner who just wants the biggest and fastest. Its a serious saw.
And the weight difference is almost nil. And I'd be willing to wager a bet that a if you cut one cord of wood with the 460 and one cord with the 372, you will be less fatigued with the 372. Because allthough it is a "tad" heavier, it will be in your hands far less than the slower 460.
And it just wouldnt be "me" if I didnt say something like "take a look at dolmar if you have a dealer around"