Hi LEDDave,
16F628A might be easier to drive 7 segment as no driver translator chip required ( because it has enough ports ). Your biggest challange will be due to 31 lines of code limitation, in the Demo program.
I do not know if assembly code is counted in that limitation.
If you have that problem I am sure Mackrackit and I would compile a few programs for you, enough so you believe this compiler is worth it's price.