my sister and i are staying overnight at the omni hotel on saturday night - we are seeing a show at the tweeter. we haven't been to philly since we were young'uns. i am looking for a cheap lunch, a niceish moderately priced early dinner (both on saturday) and a nice brunch on sunday. not opposed to walking anywhere for the meals. a quick browse here lead me to thinking farmicia would be a good choice for brunch, will i need reservations? could we get lunch in a market? what about cheesesteaks? i found out it's army/navy weekend, so i guess reservations might be tough? i tend to like youngish casual places that have nice food - somewhere you can wear jeans but still eat well. i am completely unfamilar with philly so any recs would be super great!