a lil lost

I have in my car now an optima battery in the front with 4-5.25 eminance in the doors and 2-12 inch eminance loud speakers in the trunk with 2-15 mtx thunder 3000. I have a kicker 650 4-ch. bridged to the subs and a clarion 350 to all the loud speakers and another optima battery in the trunk.  btw its a1996  honda accord wagon hers a pic http://www.accordwagonclub.com/profile.php?id=7841  . I came across a good deal on some mids and highs. I got 2 sets of mb quartz. they consist of a 6.5 a 5.25 and a tweeter. So I want to eliminate all the eminance and upgrade my subs cuz i also gota a kicker kx2500 amp. so i've been looking around and im stuck on the compvx 15. will the amp b enough for the two subs? and wich ones do i get the 2ohm or the 4 ohm?? and should I add some 6x9 or some 6 or 8inch mids in place where the two 12's were or would the mb quarts b enough so i can hear the words clearly with the subs?? I want to get the most boom outa the speakers and i want the sound quality alot better then what i have now with the loud speakers.  I also plan on getting another kicker amp for the mids and highs. On the subs someone told me not too look at the first number to go by the rms on deciding what amp to get.  so since i got the amp and no subs and the speaker box is for a round i went with the compvx what it a bad choice?? im new to all the music thing most of the time i just go somewhere and pay a ridiculose amout of mony to have someone do it but i've been doing some  reserch and came to the conclusion that with some help i can do it myself. i've been browsing threw this site for about a couple of days now and have found it real helpful.

well i have a kicker kx2500x1 amp and im tryin to figure out wich subs i need to get to get the most boom 2ohm or 4 ohm compvx? and will the amp b enough to really push the subs??  i have now in the car eminance loud speaker and im upgrading to mb quarts to get a better sound. but i dont know if i need more speakers cuz i have to sets of 6.5, 5.25, and tweeters and the new subs are gona hit harder then the ones I have now in the car.. i was planing on taking out the 12's and add 2-2way 6x9 and 2-6 or 2-8 inch midbass speakers. the current amp im using that is pushing my subs im gona use for my mids and highs.