I think for a first kit you should aim for:
- a decent camera body
- one general zoom lens (like the kit lens)
- a faster prime, like the 50
- a flash with a swivel head like the 430 EX II
- and a bag to hold it
Forget the filters, lens hoods, etc, all that extra stuff that they might try and include in a kit to up the apparent value. I don't know much about the Xs/Xt series so I can't recommend a specific one, but if you have to, hold off on the prime lens if it lets you get a better body. It may keep you from wanting to upgrade a bit longer.