So if I understand you, you are the only one in step? Also a typical answer from someone who has very limited knowledge in this field...but there again with all your posts, you are the expert and not me who has only just joined the forum....I love these debates....read on..

" As our benchmark results and power consumption tests have shown, Intel’s Core 2 Quad Q9300 represents a solid upgrade over the Core 2 Quad Q6600, which we’ve come to know and love. Even though the Q9300 has a decreased cache size and only meager improvements in terms of clock speed, all in all, performance is improved, especially in video encoding tasks, and power consumption and heat production are reduced by substantial margins as well."
Well the Q9300 is a bad idea because:
Yes, clock per clock it will be about 10% faster than a q6600 in certain apps but it is crippled with a 7.5 multi which means if you want run at 4Ghz your fsb will need to be 533. Know any mobos capable of doing that? Even for 3.8Ghz you need a board capable of doing 507Mhz.
Okay, not many q6600 run at 4Ghz either but you get my point. My Q6600 does run at 3.8Ghz.
Realistically the best overclock you can hope for a Q9300 chip will be around 3.5Ghz. If you can get your q6600 running at 3.8Ghz you have negated the speed advantage of the q9300 and in all apps the q6600 will be as quick or quicker than the q9300.
The q9300 already costs more than £40 more than the q6600 so even comparing them at the same clock speed of say 3.5Ghz, your 30% more money has only got you a 10% gain in speed. Doesn't add up especially if you can get more than 3.5Ghz from your q6600.
If you are going down the qxxx route then you really should spend the extra and get the q9450 but that costs yet another £44 and you are again in the problem of does the extra performance justify the extra £85? Probable not on a bang for buck basis.
IMO the Q9300 is just too much money for what it does since it has been crippled and the extremely cheap prices Intel are selling Q6600 off atm.
Don't forget low VID q6600 can be bough 2nd hand for £90 now whereas then 2nd hand Q9300 market is non existant.
Now if the Q9300 dropped in price to around the q6600 level then it would be a no brainer.
So if you have the money, certainly buy a q9450. If you are on a budget, buy the q6600 either new or 2nd hand as the £85 saved will buy you a superior cooling setup for your q6600.
The q9300 just doesn't offer enough performance for the extra money and is an oddball in the lineup.
EDIT: The new Q9400 does remove some of the problems with the Q9300 such as the multiplier but unless they release it at current Q9300 prices then it won't be worth it if it is pitched between the current Q9300 and Q9450 prices.