You can install custom firmware to 3.55,i think from what everyone is saying Kmeaw is the best,there are also good reports about rebug 3.55.1,the compatibility is not an issue,LA Noire,Brink,and a lot of others all work fine on 3.41,patience is the key a fix always comes out,if it will work on 3.55 there is every chance it will work on 3.41
The only thing stopping me moving is finding the eboots and which games were patched,to get all the 3.41 games to work on 3.55,as you are starting out it is a option,but remember installing cfw has its risks also