Help to replace MOSFET ? :) (4 replies)

Hi guys .. so I'm fairly confident I need to replace the left most MOSFET (its connected to the + pin next to D10) , my problem is the same as here : [www.printrbottalk.com]

I'm not too sure what to buy , from the RAMPS wiki page it should be a N channel MOSFET STP55NF06L ........ do I need to find a MOSFET with that same part number ... or will others be alright ? I will be going to jaycar tonight (http://search.jaycar.com.au/search?p=Q&srid=S10-AUSYDR02&lbc=jaycar&ts=custom&w=mosfet&uid=932917828&method=and&isort=score&view=list&srt=0) would anything there do ?

thanks so much