It's been posted various places around this site, but this has been a great resource for me these last few weeks. I thought there was a thread on this site, but none directly talking about it. Anyway,

http://dramanote.seesaa.net/

It's a Japanese site, which posts scripts to various Japanese dramas made since 2003. The quality of the scripts vary. Some being detailed others being nothing more than a summary. However, all the scripts appear to offer not only dialogue, but action and scene descriptions.

Here's what I've been doing: Go to a drama episode that I've seen, copy the script into word, set to .5" margins with double columns, add in a header with title and page numbers and print it out. After that, I go to www.jdorama.com and copy/paste the cast list which includes photos and kanji names (usually). Sometimes I'll even save this to my computer.

Now I just read it, marking notes on it if I feel like, but usually just reading it. The images of the TV show go through my head. The cast reference sheet lets me keep the names straight (Japanese names is a very weak area for me).

I'm finding these more enjoyable than manga. I have the show as a visual memory reference. There's descriptive phrases that you just do not get in mangas (She smiled slightly, he rushed down the hall, the auditorium was crowded with students that parted as the gang members approached, etc.). It's like a mini-novel.

When I'm done, I just put the script on my top shelf. It's cool seeing that large stack of papers that I've read the last few weeks. Sometimes I'll re-watch the video and find it slightly more enjoyable.

Another thing one can do (although I don't): Utilize furigana injector for firefox, then copy and paste like above.