Caching advice - use Modx or Another Caching system?

I am trying to create some snippets that will make many different API calls to another system (piwik if you must know)
I am therefore looking to implement some sort of caching on these pages to relieve the load. I would like the cache to update every hour (either via a cron or the first user to hit the page).

Can I use the internal modx caching system for this sort of thing?
If yes, is it recommended?

I have been looking at other Caching systems, Memcached looked good, but maybe a bit complex to setup, I then came across this interesting project called CachCore

http://code.google.com/p/cachecore/wiki/CacheCore

It’s a part of the Amazon Tarazan PHP toolkit (tarzan-aws.com - from the makers of simplepie) and the implementation seems fairly straight forward and is well documented.
Does anyone have any experience with implementing CachCore / Memcached or other caching systems with Modx?

I have read about xPDO and Revolutions caching system but could not find much about the current Evo version. I am also pretty new to the caching idea so please excuse any ignorance!

If you’re wanting to extend the caching system, you should certainly use Revo. It’s had a tremendous amount of work on the caching system done and can cache in all sorts of ways. If you are using Evo/096x, then create a plugin that checks to see when the last cache clearing was and reclear at the right time.