Myself, for drinkability, I use a combination of CT, winodepot, and WS, with more emphasis on CT/WD. For reviews, it is best to try some things and find a few people that you have similar palattes to. There are a couple people (WIML especially) that I can easily calibrate myself to.
Additionally, keep your eyes out on the boards for random 'wow' wines. Many people have raved about the 2003 Ramey Hyde Vineyard Chardonnay, so I knew that it was an easy must-buy.
If you're only planning on keeping wine for about 6 months at a time, I'd personally suggest just putting it in a cooler closet and use that extra money for more wine.