Firemoth (Dasher)
Piranha [depends]
Raptor [first IS omni? gib]
Owens [soon?]
...
But I am turning broke from MW: O, I am not exclusively focusing on mechs I want/ need (which is want x2)
Cougar and Fafnir are very high on my list, some other 'Mech's high on my list are the Argus, Bushwacker, Mad Cat mk II (and III... and IV... and Mad Dog II, III, and IV... but each version later is further down the time line).
To be honest...
One 'Mech I will eat up and throw all my money at will be the Hellhound, the MW4 concept, which is an omnimech instead of a BattleMech, it looks so cool and it would be awesome tbh =L
BattleTech concept art styled "Hellhound Alt.Config B"

And I wouldn't mind the mektek ares either...

I know Alex can make these 'Mechs so beautiful.