Thats my first post so if i make something wrong warn me

...Lets get down to bussiness...I made an assasin(40 lvl currently)with the following skills retribution :Full Dual wield tree,Onslaught,ignore pain,weapon training,1 skill point to triumpth and battle standar.First question what skills should i add to the rogue mastery(i wanna be heavy dmg dealer,no need of traps)...Second question:What are the item oprions that i must be more interested in ? Thnx a lot..Love Ya XD
<3 <3 <3