Can you change the difficulty? I have like 25k, level 10, have yet to die, one arrow kills most enemies...
Yes you can...I dunno how but I read it somewhere. You can change it to Silver. Everyone who is getting the game now make sure to start on Silver not Bronze
I'm a little concerned about the screen tearing I saw on the gameplay video of the PS3 version I'm watching. I hate it when games don't use vsync 
Yes there is tearing...it's not Uncharted-level tearing but it's there. It's really not an issue unless you're one of those elite OCD-ridden graphics whores that whines over a frame drop or two. It's fine, trust me.
Anyway, the game is incredible -- a loot whore's dream come true. Better than every jrpg released in the last decade. It's probably the best in this genre since Diablo 2 came out a decade ago. The fact that this game got 6s across the board is an absolute disgrace...I'm serious. You gotta wonder if they even played the game more than an hour or two.
Also, the controls are excellent...which kinda confirms my suspicion that most reviewers didn't play it much because once you're 2-3 hours in, the controls become second nature and you really begin to see how intuitive they are. The ability to map the various attacks to the face buttons is great, and then being able to hold R2 or L2 for another "set" of mapped face buttons works perfectly. There's also combinations where you can map several attacks to one button and your character does them all in succession.
Menu system is fine too...just takes an hour to get used. Sacred 2 is a must-buy if you enjoy loot-finding and rpgs in general, but especially loot-finding.
My first big find was an axe called Doom Cleaver that was lit with fire
by the way, i recommend you try the bow as well as the melee. The bow attacks are really satisfying for some reason... maybe it's the sound and the impact of the arrows, I dunno. I found a really badass bow too...sell value is over 3k. I'm like lvl 9