The best 410 is actually two 210s 
at least it is worth a consideration (though it may add 10-20% to the total price).
As a companion to my LMII, I decided to go for the Standard 102HF and the Traveler 102P instead of the 104HF because it adds a lot of flexibility. Obviously, they are easier to transport and in the case you only need one cab it will become even easier. Furthermore, you have an option for staking the cabs the way you want, which is a nice feature (there is a long interesting thread about this here http://www.talkbass.com/forum/showthread.php?t=519459 )
Earlier, in this tread the sound difference between the front and rear ported versions of these cabs were discussed. It is true that the front-ported gets more physical than the rear-ported, which is great in many situations. On the other hand the rear-ported is a bit more controlled and somewhat tighter in the bottom (it should be mentioned that the 102P, volume wise, is half the size of 102HF). It should also be noticed that both the two 102 and the 104 uses the exact same 10" drivers so, even though the cabs have slightly different characteristics they also have a lot in common. I doubt that you will be able to tell the difference between 102P+102HF combination (horizontally stacked) from the 104HF. The 102P+102HF have the same sensitivity and melts together as one. However, if you split them you can here the difference between the two different ports. I honestly don't know which one of them I like most it depends slightly on music style they are both great and together they are even better (use in combination we also run the LMII in 4 ohm if we believe that is important)
As already mentioned the main bonus of having two cabs instead of one is the greater flexibility both in tone and transportability. While having your bass + LMII in a gig-bag you can carry the small 102P in one hand and bring your great tone with you on public transportation (a bit hard with a 104HF).
at least it is worth a consideration (though it may add 10-20% to the total price).
As a companion to my LMII, I decided to go for the Standard 102HF and the Traveler 102P instead of the 104HF because it adds a lot of flexibility. Obviously, they are easier to transport and in the case you only need one cab it will become even easier. Furthermore, you have an option for staking the cabs the way you want, which is a nice feature (there is a long interesting thread about this here http://www.talkbass.com/forum/showthread.php?t=519459 )
Earlier, in this tread the sound difference between the front and rear ported versions of these cabs were discussed. It is true that the front-ported gets more physical than the rear-ported, which is great in many situations. On the other hand the rear-ported is a bit more controlled and somewhat tighter in the bottom (it should be mentioned that the 102P, volume wise, is half the size of 102HF). It should also be noticed that both the two 102 and the 104 uses the exact same 10" drivers so, even though the cabs have slightly different characteristics they also have a lot in common. I doubt that you will be able to tell the difference between 102P+102HF combination (horizontally stacked) from the 104HF. The 102P+102HF have the same sensitivity and melts together as one. However, if you split them you can here the difference between the two different ports. I honestly don't know which one of them I like most it depends slightly on music style they are both great and together they are even better (use in combination we also run the LMII in 4 ohm if we believe that is important)
As already mentioned the main bonus of having two cabs instead of one is the greater flexibility both in tone and transportability. While having your bass + LMII in a gig-bag you can carry the small 102P in one hand and bring your great tone with you on public transportation (a bit hard with a 104HF).
