Hey guys......I have a sp tool one...bought from tool force and it is really good,haven't had any dramas with it yet...the cordless cost me $750 with 2 battery and charger,the charger also charges other cordless sp tools...get info from toolforce....u probably can get an account with them also

265Nm is about 50kg on a half meter bar; thats a fair amount of torque but I daresay I've had to pull harder to get some nuts loose. Although the impact will help in some situations.
It depends on what you're going to be happy with. The cheaper one will be enough for 95% of stuff, but you might have to manually crack a bolt every now and then. Is it worth the extra money to avoid doing this?

I'm thinking the cheap Ryobi is the way to go for me. Like you said, it should do 95% of the jobs I throw at it. A Makita with 50% more torque will probably do any job I'd need, but it costs more than double.