I have these Steadler pencils that my friend gave me. They're erasable, and I really like them XD They bled easily and they hardly ever break. I've used mine soooo many times and their still about as tall as when I got them. The colours are pretty nice too, even though I only have a set of 12, but you can blend them to make different shades. It says Noris Club on the package, so I don't know if that's what their called or what It's made by Steadler though.
Unfortunately student-grade pencils tend to be crap and artist-grade pencils tend to be expensive. If you don't want to buy Prismacolor, which are $30 (on sale) for a set of 36 at Dick Blick I can't see you shelling out $55 for 36 Faber-Castell Polychromos or Derwent Studio pencils. So whatever people are going to recommend, it's either going to be much like what you're already using, or out of your price range.
If you're serious about working in pencil crayon, my recommendation is to obsessively look for deals on 48- or 72-colour sets of the really good artist-grade brands. You may be able to find a nice set for super-cheap someday and they'll last you for a long time.
You know the usual Put the pencil on paper and that's it method? Try using graphite, water color, and hell, even alcohol with them. Color combos like that make drastic changes to the image. It's really cool.
I use quite a mix of pencils, mostly Prismacolor/Karismacolours, Caran D'Ache and Faber Castell's Polychromos so I can only comment on these. I think out of the lot, my Caran D'Ache ones are my favourites.
I find the prismacolours a little too soft and waxy and whilst I really love my Polychromos ones (I only have a few) I sometimes find the leads a little too hard and so they don't blend as easily as (say) the prismas. But the Caran D'Ache ones seem to be totally in between. They're not the cheapest of pencils (but as far as I know they're less expensive than prismacolor) but I have a set of 18 and that is absolutely plenty of colours to use for any picture.
They are my favourites because the leads are soft and blendable enough to be easy to work with but not so waxy that it shows up on the paper, and the leads also seem to be strong enough to resist breakage (I've dropped my pencil roll with them in from short heights and they're not suffered any ill effects as far as I can tell, which my prismas have). And the colours in the 18 set seem to be a good enough range that I don't really feel the need to purchase a bigger set.
Ah no worries at all! Like I said, I love spirited away and my inspiration I think came from that film as well as a few other places
On a side note, I had a quick look on Amazon and these are the exact ones I have: [link]
As an example of what I did with those 12: [link] It says in the description that i used prismas but in reality I did the base rust/orange colour with 2 prismas then the fur detail, eyes and background with my Caran D'Aches as the prismas were a little too soft for me to do hard detail strokes with