i would never go for 6x9s,
tacky chavy crud, they sound awful
and magically transforms your car into a chav chariot,
if you want an upgrade worth doing, change the front speakers for components,
but if you REALLY need them, then no watts (wotzzzz) are not the things to look at,
theyre just a number that products boast to chavs,
and other chavs boast to each other,
there are many other factors that determin how good speakers are,
better idea would be to sit in people with 6x9s cars a listen to them to give you a clear idea of what they sound like,
1000w loudest 6x9s chuck out the same amount of sound as my 60w
stay away from anything that offers more performance than the price suggest,
or dodgy sounding makes,
because theyre chav accessories,
and chavs love wottzzzzz (innit)
most 6x9s will offer rediculous wattage output