If you have a vps box, you can easily install memcache and set the size on it (64 megs, 128 megs, 512 megs etc). For static assets, are you referring to actual

If you have a vps box, you can easily install memcache and set the size on it (64 megs, 128 megs, 512 megs etc). For static assets, are you referring to actual files being served? If that's the case, you don't have to put that in memcache. I would recommend putting it on a third party cdn (e.g. amazon s3).