Needless to say having a good instructor is the best option, but I do know that there even a few pro MMA fighters that started out learning from books & vids (Evan Tanner being one if I remember correctly).
It doesn't appear Mofosu is looking to become "a fighter" but just wants to train and learn some technique, so in that case working out at home is fine. Better with partners of course, but it'll do.
For boxing videos you may want to check out Rob Pilger's website for a list of resources.
Duke Roufus has a muay thai vid series out there:
Duke Roufus Muay Thai DVD set
I haven't seen it but the guy has many years of experience.