Help with budget tower speakers.

I was thinking of getting two cans from boarders mall. What is the best budget speakers I can use for cans? Also what type of amp would I need to run the speakers. I would also like to have a volume knob for the speakers as well. I currently have a regular deck and 4 speakers running off that. I do not believe there are any pre outs on the deck. I have a stock alternator, perko switch and two batteries if that helps.

Is something like this worth $250 or can I make a better setup by buying the speakers seperate?
http://cgi.ebay.com/KRYPT-X-WAKEBOARD-TOWER-SPEAKERS-MARINE-BOAT-SPEAKER_W0QQitemZ330325611956QQcmdZViewItemQQptZLH _DefaultDomain_0?hash=item4ce8f0d5b4&_trksid=p3286 .c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C3 9%3A1%7C240%3A1308%7C301%3A1%7C293%3A1%7C294%3A50

I want to keep this down to a few hundred bucks if not less. I know wetsounds are sweet, but the budget is limited.

Thanks for your help.

(Message edited by azpowerhouse on May 04, 2009)