MMM,
You could use one of the wizards for the pocketing, but, none of them provide for a slanted bottom.
You could rotate/ hold the stock on a slant and mill the pocket. Also you could mill to the min depth and then slant and continue milling the pocket on a slant. Other than that you can go in and manualy change the code such that after some depth the code becomes a
combination y or xz move.
As far as easy to use program, have a look at Mach3 Wizard List which can be found in the Members Docs.
It provides a list of all the wizards along with a picture of each screen. Note that the Newfangled wizards requires a license. You can do a far amount of machining with them. Trying out the different wizards can help prep you for what some the CAM programs willl do for you.
RICH