Love your work and the other vids you do on YT! I hope I can get to the point where I can offer contructive feedback on your work, there's nothing I can really add!
If you wanted a quicker way to do find classic sound effects, the sound effects wiki have organised em pretty well:
http://soundeffects.wikia.com/wiki/Warner_Bros._Sound_Effects_Library
If you just use the old ctrl f, and "save audio as" on the samples, it's pretty painless, at least in comparison to listening to compilations!