Essential tools for assembling models?

[pattyg]

Ok, newbie question here. I've not done a model kit for around 30 years so a little out of practice. Anyway, I'm going to buy and start my first model soon.

What tools, extras, will I need to buy that are not included in the kit. Remember, essentials only as I'm not sure if I will get into this or not. Also, where is the best place to buy tools and indeed models.

Thanks in advance.