Update: I am still looking for one to buy and I came across a NICE on with under 100k miles, EX, 2006 MY. I was initially not considering a 2005 or 2006 because of the transmission differences but this one is almost too nice to pass on. Through diagrams/parts interchange I can see there are quite a few internal differences from 2005-2006 models compared to 2007-2010, that being said how MUCH better is the 2007-2010 versus a 20005-2006?
If it's under 100k chances are even if the transmission was neglected a bit it's fine. The 05-06 models are slept on a bit if I'm being honest. The transmission is more than capable both in my experience and in the experience of many others.
From 05-06 to 07 the transmission was the biggest change, maybe a couple minor odds and ends changed in a couple spots but outside of that it's not that different.
08-10 is the refresh so some things changed, but since it's an EX, the engine is pretty much the same.
I wouldn't say the 07-10 is so much better that an 05-06 isn't worth considering. Check the condition of the ATF, if it still looks mostly red, you should be good if the rest of the car checks out.
Another thing that changed is the starter. From 05-06 all trim levels had the Mitsuba starter, for 07 all models had a Mitsubishi starter, and for 08-10 LX/EX models, the Mitsubishi starter remained, while 08-10 EX-L/Touring models got the Denso starter.
No major quality difference there, just something to note.