Help me decide

[Kanyon]

So BestBuy fried my amp while installing a CD player and refuses to take responsibility, great excuse to get a new system huh? Anyway I have an alpine CDA-9856 deck, pioneer 2-way 4x6s up front, pioneer 3-way 6x9s outback, Kole audio (made by Power Acoustic) 980w amp (500rms ish) and a 12" Dub Audio sub 800w (500rms) in a sealed box. Now this sounded alright before the amp blew but my friend has a 10" type E in a sealed box with a fosgate 300w amp in his Sonoma that is loud as hell. Obviously the brand makes a difference, so what should I get that would sound good for less than $300? I would prefer a single sub and an amp but am open to any suggestions. Also are the 10" kickers any good, I have one somewhere but don't have it in a box so I never really could tell how loud it was?