you can get a smaller one but the D3100 will not hurt
id go ahead and just get the D3100 but the smallest id go for a single extra batt is a D3400 but i like over kill
i like both.. plud side to sony is its free, and a blueray player
just sucks that its been down for so long but i am happy i have XBOX! with the new black ops maps
DC 2k to match the subs...
that amp is 550 already thought bout it i think im gna have to go with aq my buddy has one he will sell me for 350
for $350 id rather just throw in the extra money and get a BNIB one with a warranty
AQ1200D-$250
AQ2200D-$389
Both Stable at 1 ohm (but i played my AQ2200D at .25 and it handled like a champ NOT DAILY)
http://www.audioque.com/AQ1200D-Amplifier_p_30.html
http://www.audioque.com/AQ2200D-Amplifier_p_31.html
/thread
^ this would be a good match as long as you have dual 4s
$89 over your budget though..way worth it though there beast
i own one also
http://www.audioque.com/AQ2200D-Amplifier_p_31.html
this is the biggest ported box i could get with a tuning of 34hz
its about 3 cubes a speaker, the bare minimum for a ported box
subs up port back with 3 common walls
what are you going to power them with