Fork or BB?

[SpecHR55]

Im stumped on whether to get a new fork (Manitou Slider Plus 170mm double crown) or a new Crank set (Race Face X-type). The fork is $250 (70% off) and the crankset is $288. Currently my BB is creaking, but besides that nothing much. My fork (01 marz bomber single crown) is holding up but i have a feeling its going to go soon. This will go on a bullit if that changes anything.

Help please, i dont have the money now but i want to make sure i get the right choice so i dont blow it haha.

thanks:)

[toolmaker]

I was just stuck with same decision this spring. I went with the Crankset and bottom bracket first.( Shimano LX M580 2 piece ) I figured I can ride with a crap fork, but once my crank is done so am I.