thanks, that actually answers my questions on the fets after a little more research. when i looked at transistors and fets the pins where named different and i wasnt sure why that was. Thanks for the poke in the right direction. The reason i was asking about the IRFZ46N is because i pulled 12 out of a APC that went bad and wanted to see if i could use them at save a trip anyway. Wired it all up and worked great. with the blink sketch. Now i just want to need to figure out a way to use processing to change to on and off time of the solenoid. Thanks again.
Ryan