I respectfully disagree about going cheap on ammonia tests, especially in the beginning when you're more likely to have ammonia in your tank. Some of the cheaper tests (API) can register low ammonia no matter what. Any ammonia level above 0 is not okay, so you absolutely do not want a test that will register as .25 when it should show 0. You need to be able to trust your ammonia test so that you will be able to react appropriately if you ever do have ammonia in your tank.
I use Salifert test kits and also have a Seachem ammonia alert badge on my QT. Red Sea is a great brand too though, I think you'll be fine with those!