Which model Allez? There are a whole bunch of different levels.
http://www.specialized.com/bc/SBCBkModel.jsp?spid=9623

Brian

I've ridden some of the past years models, so I don't know how much they have changed, but they are very comparable bikes. One small difference is you get a slightly better front derailleur on the specialized.

This makes fit the biggest selection factor in my opinion. Take them both out for a quick ride before you commit. They are entry level bikes, and if you get serious into biking you are going to want to buy a new one when you can afford it (although for me this seems to be the case no matter what I have on my bike), but they are a great place to start and you'll have fun on either one.

When you do buy one though, look into buying clipless pedals and shoes. They make a huge difference and can easily be trasferred between bikes. Plus if you buy the accessories at the same time as the bike they can usually cut you a bit of a deal. Get them to throw in some inner tubes, tire levers, maybe even a CO2 gun. The little things add up, so if you can get them for free its good. I use the same bike store for all my purchases (mtn and road) and they make it worth my while ;-)

Let us know what you get and how you like it.

Brian

I started on a Trek 1000. Great bike although heavy in comparison to my Trek 2300. The new 1000 has a carbon fork and Ultegra, I think. Should be lighter than the old ones. The bike was always rock solid. Trek gets my vote. HTH - Scott

I own an allez, which I've loved and ridden the hell out of since I bought it last October. The guy who owns my LBS deals both Specialized and Trek and actually recommended the Allez over the comparable Trek because he thought it was a better value, all things considered. The Allez has a carbon fiber seat post, which the Trek doesn't, and they also include Barphat(a gel damping wrap) under the bar tape, which seems to help a bit with the whole "fingers going numb" thing. Especially if you're a tri-geek who won't always be wearing gloves...but at the end of the day, fit and lust trump all of this. I personally just liked the Allez better, and I thought the flat black finish was pretty sexy. You also might want to check out the Felt F-80 or F-90...they've got a more "old-school" geometry, which you may or may not like better than the compact geometry of these 2 bikes.

Happy shopping!
Jason

here is my thoughts. i just bought a Allez about 3 months ago and i wish i would have went one level up. The main reason is that you can't upgrade components without upgrading shifters, derailers, and casset all at once. this is because it only has an 8 cog casset.

drop 150 bucks more and get the Allez Sport.

Don't get me wrong i love my bike. it fits great and has been a great bike, but i am a gadget freak and love to buy little upgrades when i can find a good deal. here i don't have that option. It has been a blessing and a curse. i don't spend all my extra money on my bike.