Is there a site where I can just download the entire monero blockchain instead of waiting for it to sync? And where do I get the official client?
Both blockchain and clients are on https://getmonero.org/downloads/.
The blockchain (https://downloads.getmonero.org/blockchain.raw) needs to be imported once downloaded. Verification is recommended, but it can be turned off for speed (current master is a lot faster for this, so the coming release will be too).
Current master is also much friendlier on the download size needed (barely more than blockchain.raw).