Another thing to keep in mind too, cheap ballasts can also produce heavy RF, radio frequency, fields. Depending on where you're at and the "chill" level of the state/country, RF fields can be an indicator of ballasts used for indoor gardening, so it could potentially be a little more "publicity" than you'd appreciate. People even get their cable/internet shut off for emitting RF fields and can't get it turned on again till it stops as these RF fields disrupt other's cable/internet service even though it may not be apparent in the house that the ballast is in. I'd locate a local store that sells EMI filters specifically made for ballasts just in case you run into this. Those usually do the trick. You don't have to buy one till there's a problem, but just knowing where one is locally that you can buy and set up quick is a good safety blanket. And I fully agree with
@rickymac21 about getting a good ballast and skimping on reflector. I do suggest a good bulb though, something mid range at least. Growlite real red or TruBlue are both good bulbs that won't break bank. As usual, you get what you pay for.
Speaking of banks- what will break the bank? What are you looking to spend? That really should have been the first question