alrighty, get ready to read.
I'm bored at the moment and am procrastinating housework, so I'm going to ramble for a bit. lol
you CANT get around bugs. at all. you might be able to get around crickets for the most part, but you would need to feed superworms, which are giant mealworms... lol
They are omnivores and need a diet of veggies and insects. They eat a lot of crickets and mealworms/superworms as well as dark leafy greens, various veggies and fruits. They eat a LOT! even a hatchling beardie (what you saw at petco) could eat about 30 small crickets a day- no joke.
they get big- on average about 18inches from nose to tail. they grow fast and they need a fairly large enclosure.. about 4x2x2 as an adult. They need UVB lighting and lots of heat- a basking spot that reaches up to 110 degrees during the day is ideal.
The lighting they need can be costly. a UVB bulb retails at about $25... ceramic heat emiters (what I use instead of black heat bulbs) are about $40...
that's a quick run-down. I have unlimited amounts of informatin on them, so if you have any other questions, I'm sure i can answer them
as for water dragons, they're cool, but strictly carnivorous. you would need to feed crickets- and lots of them.
and they get big as well, so they need large enclosures, too.
as for not needing crickets.. I recommend a crested gecko or a uromastyx. Uromastyx are REALLY cool lizards. They're kinda like beardies, but they tend to be vegetarians. SOME Adults do eat crickets on OCCASION, though. they are really cool lizards, need TONS of heat and lots of room, like beardies, but are calm-mannered and tollerate handling well, etc. however, they are dumber than rocks and will walk right off the edge of a table or right off your shoulder, etc. they just fall and keep walkking, lol!
Crested gecko would honestly be the simplist to get. They dont need heat much (or at all). they can live entirely on Crested Gecko Diet- a powder you mix with water. I give crickets as a treat occasionally, but it's not necessary. plus, they dont get big, dont need special lighting.
Basically, they are the simple deal.
if you're looking to go the more difficult way, that's cool too, lol.
Dont buy anything that NEEDS mealworms (there's not much, but some people sell animals on craigslist and stuff that only eat mealworms) and there is a nationwide shortage of mealworms at the moment- has been for a few months, and will continue for at least a few months, so dont rely on them for anything!
and it's late and I am tired, so that's all I can come up with off the top of my head, but feel free to ask any other questions and I'll answer them to the best of my ability