Here are some options post RTK-1, not including the movie method-- there's a thread for that on the message board-- just search for it and you'll find it... that's a whole other discussion, but it can also be very useful if you want to conquer on-yomi. Or:
(links provided to sites where there are previews available.)
1. RTK2, and whatever coping strategy you want to adopt for that. You only get readings, sometimes obscure vocab. Sometimes it pushes odd readings, no context, etc. Search the forums for Japanese Keywords as well. (I didn't particularly like it's method of dealing with kun-yomi, or the lack of context.)
2. Do RTK3 and keep doing English keywords for kanji you'll probably never see... unless you're a geologist or a botanist.
3. Kanji in Context: No sentences for some kanji (seems to be random), requires higher level of grammar ability sometimes, not for beginners, but the reference book is very good. Check the thread on the message board for more info. Preview here:
http://www.thejapanshop.com/home.php?cat=347
4. 2001 Kanji Odyssey: lots of sentences, but they're long, can be oddball, and they only cover 1,100 kanji. (3rd volume is in the works with sentences to cover the rest?) The books follow a frequency list, though, and it does work pretty well. (My own personal bias.)
http://www.coscom.co.jp/ebook/e-2001kanji.html
5. The Basic Kanji Book series (only gets you ~1000 kanji.) Not cheap, but lots of drills spread over 4 volumes. (Anybody use this and can give feedback on it?)
http://www.thejapanshop.com/product.php?...=63&page=1
6. smart.fm -- use some of the lists people have put together there, drill on the site for a while, and then import them into Anki, because smart.fm's SRS isn't very good. But the colors and such are less boring than Anki, and it takes the pain out of the initial reviews.
http://smart.fm
7. 例文で学ぶ漢字と言葉 -- gets you to 2kyuu in JLPT (again ~1000 or so kanji), but no English help, you need a certain level of grammar, etc. etc. Written by the same guy who wrote Kanji in Context, by the way.
http://www.bk1.jp/product/02602603
8. 日本語総まとめ問題集 [2級漢字編] (新書) -- Jarvik7 recommended this series. The book looks like fun. Based on signs and things people actually see. Also has sentences. Looks like it's based off of JLPT 2kyuu again, so I'm *guessing* it'll get you ~1,000 kanji again. (No basis in reality on that, just a guess based on JLPT level.) Link takes you to amazon.jp, where you can see a preview.
http://is.gd/1eKhs
9. 実力アップ!日本語能力試験2級漢字単語ドリル -- this is the UNICOM JLPT 2 kyuu kanji book. It's also full of sentences as well. It's not bad, but it'll probably require a certain level of Japanese proficiency that a beginner just doesn't have. is.gd link is where you can buy it (amazon.jp), japanshop link is where you can preview it (they're out of stock).
http://is.gd/1eKqp
http://www.thejapanshop.com/product.php?...268&page=1
Looking at a lot of these books, they aren't really geared towards the beginner. They're more geared towards someone who has at least passed or can pass JLPT level 3. If you're just starting out in Japanese it might make more sense to start with a basic Japanese text, and study that first before moving on to a kanji book.
Or you can just do whatever you want, really. The books are just guides. There's no ironclad rule that says you have to do X to succeed. Some books are better for some people than others, while other books are total mismatches for other people.
And some people do best just reading Harry Potter.