Xbox 360 slim - add aftermarket thermal paste and fan.
Very easy with the metal spudger. Didn't really need the other spudger, but it helped to hold panels apart while I unlatched other clips.
Definitely buy the spudger kit. The standalone spudger was a little too wide for one step of opening the 360. Had to use a precision flathead screwdriver that was fortunately long enough. I believe the kit includes a slimmer metal spudger, and it's not really that much more. I think I missed it when I placed an order.