All good advice so far but let me chime in with my expiriences.
Back in 2003 or 2004 I purchased a Radio Shack wireless station which I belive is the O/S WMR-928 or so, my brain is mush these years and I have forgotten. The unit is not QUITE waterproof as I had found out and had to have the temperature gauge replaced shortly after installation. Upon replacement I took all circuit boards and coated them with several coats of Krylon clear over several days. The water problem was solved, the station lasted 2 hurricanes in 2004. Late in the year some of the sensors fell prey to ants, in South Florida we had a lot of them. Several nested in there and died, their bodies are highly corrosive and ate away through the krylon and then the circuit board traces. I fixed them but their operation was erratic at times , come 2005 we got another 2 hurricanes and the unit failed during the 1st one, I gave up, the durability is just not there.
Fast foward to Christmas 2007 and we had moved to South Carolina. The wife purchased a Davis Vantage ProII for me. Yes it was expensive but boy is the quality and reliability there. I am using it along with a serial logger and an GREAT piece of software called Weather Display that comes from New Zeland. The author is a dairy farmer and amateur radio operator with frequent trips stateside for tornado chasing.
I REALLY suggest if you need to wait a bit longer and save some money upgrading to some of the Davis products. Peet Bro's also have some nice units, a bit less expensive initially but if you add up the accessories it's not much of a savings of the Davis. I sold a few Peet units to a customer that had a few ships and owned an island in the Bahamas and they required quite a bit of TLC.
If you want to check out the local data I have my Davis and Weather Display software on line. Take it easy on me, it's only using a Verizon Wireless modem and my signal is very weak here.
Hurricane Ranch
Another quicker and more reliable way to see how the data looks would be to check out weatherunderground.net , search for Sharon SC. I also upload the data to the weather underground since it's better for me to check that web site while out at work and it does not cost me bandwith. You don't see any fancy graphics but the data is the same.