I've used a dif textbook for each level of korean, beginners, intermediate and advanced
uhm, although i used a really awesome intermediate textbook, I dont think I can recommend it cause its geared towards learning through japanese, but if ur interested, I totally reccomend the dekiru kankokugo series, available on amazon.co.jp etc
I actually used genki myself when i started out w/ Japanese, so i know what u mean about layout. heh
anyways, ganada has some nice textbooks for decent prices that come w/ cds
its nice cause they speak at a natural speed and the chapter topics are interesting and useful! plus if u look around, u can find flashcards etc online for the beginners and intermediate levels, but advanced students r on their own
oh, i would incredibly NOT recommedn the college korean series. I've checked those books out and they r old and rubbish. how could they call that intermediate level!? omg. I learned all of that stuff in my beginners book.