Fvck the 6x9's, waste of money, just use your old ones in the back and have em runnning off the HU or a small amp.
JL subs IMO are best value for money, I've had the W0 and W3's personally and they really did put ALOT of other systems that I cam across to shame. I bought my W3's for around $340 each. Wasn't very impressed with the JL amps though, and the Kicker amps make me wanna vomit in rage!!! For amps, i'd look into the Alpine v12 range, i've heard alot of good things about there new amps, haven't actaully heard the lower end ones, but if there anything like the previous series, then there definately the way to go.
For speakers, i've always been a focal man, I've heard fairly wide range of speakers and for me they are the best for my taste (trance, hard NRG etc). The polyglass series are lovely sounding speakers and would be in your price range, very musical and bright with the tn45 tweets, with a surprisingly fair bit of mid bass.
Spits and co-axils are really the grey area of car audio, there's no clearly defined better or worse speaker, it's really upto the users taste. Everyone's view is different, many people don't like the focal's, other's swear by them (myself included). It's really best to at least sample the speakers yourself properly if nothing else.
It also depends on how much you wanna spend. Most of the speakers that I've sampled were of pretty high end quality, so my experience with lower end gear may not be too varied.
How much do ya wanna spend on each item? Might be worth looking into some second hand gear, huge savings provided the equipment is in good condition. Go to www.caraudioaustralia.com
, there always good for a bargain.