hands down Trex 450SE is probably the best micro/mini heli out of the box.
video of a all align motor/esc and out of the box 450SE
http://www.readyheli.com/media/trex_2.wmv
if i could do it all over again id make a "custom trex heli"
heliworkz or rotorworkz g4 frame + trex metal head + heliworkz elevated tail + pro zero slop tail
it would look something like this
top one = heliworkz frame (simplifies the whole heli drivetrain down to 1 gear)
bottom one = rotorworkzg4 frame + heliworkz tail