garysol1 

At that price range you will be looking at very similar bikes from all of the big manufactures. They will be aluminum frame with a carbon fork. At that price make sure what ever bike your looking at has 105 shifters and deraileurs. Not knowing exactly what you want to do with the bike makes recommending a particular model is impossible. Find a good local shop and tell the sales person what you have to spend and what you want the bike to do and they should be able to point you in the correct direction. Also make sure the store will include a fit with the bike to insure that you are as comfortable as possible. Keep in mind accessory's as well when looking at your budget......Shoes and pedals, computer, water bottles and cages....