#1
I have an LTD ESP MH-50. Not really the BEST guitar, but it's decent. Is it worth upgrading the pickups or should I just get a better guitar. I play stuff like Megadeth, Dokken, Pink Floyd and Savatage. This is the guitar

http://www.musiciansfriend.com/product/ESP-MH50-Electric-Guitar-with-Tremolo?sku=516688
#2
if you put in any pickups worth having, they will last years longer than that bridge, so your better off with a new guitar.
no offense, that's a fine guitar for building all yo necessureh chawps.
I can't stand watching people waste their money on horrible gear.
#4
whats your current amp? and what do you dislike about your tone?
Ibanez RG321MH (Air Classic/Tone Zone)
Fernandes Telecaster (Twang King/stock bridge pickup)
Blackstar HT-20 (Scumback 55 speaker/ Tung Sol tubes)
TC Electronic Nova Repeater
Lava Cables Clear Connect, Soar and Mini ELC