All tuners are going to cost you about the same: $350-400.
Brenspeed offers the SCT X-cal2 with 3 custom tunes of your choice and 4 different choices of intakes ranging from $525-$600 for the package.
BRENSPEED, BBK BMR SCT STEEDA MAC PYPES SLP MUSTANG PERFORMANCE PARTS
Bamachips has a similar offer with the C&L Intake and choice of SCT X-cal3 or Diablosport Predator tuners and 3 custom tunes of your choice. Price for C&L/Xcal3 is $625, price for C&L and Diablo Predator is $600.
BamaChips Tuning
You can also get a DeMolet (Tunable Induction) intake/tuner kit for $480 that comes with the Demolet intake (which is what I run) and an X-cal2 with 87, 89, and 91/93 tunes. They're not as reputable of a tuner as the other 2 but their intakes are top notch and perform and look great.
News
Hope this helps a bit.

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Black 2005 Mustang v6, 5 speed, IUP, EUP and Leather.
Razzi 1/4 window scoops, Mustang GT Sway Bars, Flowmaster American Thunder Single Exhaust, Clear Front Turn Signal Lenses, Demolet CAI, X-cal2 91 tune, Hurst Comp/Plus Shifter, FRPP T-Lock, Ford 3.73 gears