hi..i have intel p4 processor 519k 3.06ghz ..its pretty old and i am having ASUS PTGD1-LA mother board...and it does not have a graphic extension slot ....and i am thinking to change my mother board because it does not support many games...and use the same p4 processor..any ideas which motherboard will meet into my criteria....or else ...is it advisable to completly upgrade my motherbrd and processsor..??