My first and only bass guitar is an Ibanez SR300DX and I've had it for about 2 years now. It is a fine bass but I think it is time for me to move up. I am looking for a nice bass guitar that is less than $700 and i was thinking about getting a Standard Fender P-Bass. What do you think? Would it be an improvement over what i have now? I like to play classic rock like Led Zeppelin, Black Sabbath, The Who, Etc. I need a fast neck and a nice array of tones. Anyone else have a suggestion? Of course I will try out everything before I buy it. Thanks in advance!