ok i have figured out what i wanna do but need some opinions/advice

i now have splits in the front that i'll run off a 2x45w rms lil amp i've got floating around...

so i was thinking about some new 6x9's in the shelf, mine are very tired and thrashed, so i was thinking about getting some reasonable ones for about $200 to run off the h/u, reccomendations??

so it now becomes sub time....
options are for either 1-2 12's 1 15?

i was thinking 2 x 12's they are in a sealed enc and are 250w rms ea 4ohm, cant rember other details, whats an ok amp to run something like this?

can a monoblock run 2 subs or will i need 2 amps? or should i get a 4ch bridged?

lastly i wouldnt know an ohm from an ****hole, so.... i was thinking if using a mono, i could just wire up each sub to the amp, eg left sup + to amp + right sub + to amp + etc... or is that dogey and will melt my subs and amps??

well i got 1 12" 1300 watt sony sub and that thing cranks from a 570 watt (bridged) amp so the sub is really underpowered at the moment but even now if my boots open my folks yell at me for the bass and they're inside the other side of the house (about 40m away through walls and a brick wall) and it will even churn u'r guts in the car. so dont worry about having not enough bass and keep in mind that this is just a cheap setup (temp for me anyway)

if you want something decent for the rear, i have kicker KS-693's sitting in my car and they pump like anything, i would highly recommend them and you can pick a set up for around $160-$180 depending on specials and such. another decent ones to look at, ive seen JB hifi selling some JL audio, basic but they are still JL's, around the same price, have a look at them