Prior to replacing the old crankset we had 28/42/53. On the rear I had 12/27.
With the new crankset (Ultegra 9 spd) I have 30/42/52 and 12/30.
I made the 12/30 cassette by taking a 12/27 removing one of the lower cogs and adding a 30 tooth cog on top. Works well. I tried an IRD cassette at one point and never got it to shift well. I also added a jump stop which completely stopped the chain from falling when shifting to the small ring.