I personally have the OME 2.5" HD lift and absolutely love it, it's worth every penny. I will say that if you go the OME route you want to make sure to get the HD kit. Most people who don't get the HD kit later regret it. HD stands for Heavy Duty, and refers to the higher rated springs in this kit.
If you're like the majority of us and have a hard top, a winch, heavy bumpers, tires, etc. you absolutely need the HD springs. The standard springs won't ride well with all the extra weight, and they'll sag much easier as well.
I can tell you that the 2.5" OME HD lift with a 1.25" body lift will easily accommodate 33" tires and it will be a very nice lift as well.
You'll obviously need to make sure that you either have a SYE (slip yoke eliminator) or transfer case drop brackets if you plan on lifting your Jeep. If you don't have one of those you'll almost certainly encounter driveline vibrations which won't be good.
Last but not least, you're going to need proper bump stops and adjustable front and rear track bars if you want to do it right.
I pieced my lift together part-by-part. However, if I could do it all over I would have saved a ton of money (and time) just purchasing the
DPG Off-Road OME Ultimate Lift Kit. This kit includes the complete OME HD kit, body lift, adjustable track bars, motor mount lift, bump stops, and every single thing you'll need to get your Jeep setup properly.
Not only that, but all of the components included in this kit are top notch quality! I HIGHLY recommend this kit, and if you ask around you'll see this is one of the more popular lift setups for the TJ.
There are plenty of other options out there for lifts, I'm just giving you one of the more popular 'complete' kits.
My last piece of advice is to stay away from Rough Country and Rusty's lifts. Those lifts are widely regarded as having crappy ride quality and sub-par components.