http://www.nashbar.com/bikes/TopCategory_10053_10052_202326_-1_202326_Y
http://www.rei.com/learn/expert-advice/bicycle.html
A new bike! Bike shopping is fun.
First off do some research on the different styles and types of bicycles available. Also look at cycling specific clothing. Then check out the add ons like racks, lights, rear view mirrors, a bell and tool kits. You'll also need a bag for the tool kit. One on the seat may be preferable. There's also numerous locking devices to look at.
When choosing make sure the frame fits your body. Handlebars and stem can be changed to fit your reach and give the more upright position you prefer.
Next comes the seat, very very important that a comfortable one is selected. Note that the wide seemingly comfortable ones will prove to be pure **** in action.
Pedals/shoes mean more options. The clip in's are desirable and make sure your foot is properly placed on the pedal.
A mountain bike with narrower road friendly tires may make them grass shoulders more palatable.
Suspension ups the cost but in rough stuff it's nice.( full or just the forks)
Gears are good for reasons already mentioned. You will find you set a cadence and shift gears to allow that cadence. Pick the shifters/brake set's that feel comfortable and of good quality. Then there are the gear ratio's to look for. A really low granny is heaven when it's required. Ratios ranging from about 20 to 40/45 gear inches may suffice.
You now have disc braking available. The choice is yours as the rim have worked well for many years.
Now for a few item that should be a must have.
Helmet, cycling gloves, cycling shorts( they may look wimpy but surely beat blue jeans or ordinary shorts. Your butt will appreciate them) rear view mirror, rear light, tool kit, tire repair stuff, pump and lots of other stuff as time goes on.
You will find that the more expensive the bike the lighter it is. The frame and wheel materials also change as price increases.
Enjoy your cycling:thumbsup::thumbsup:
A items have been mentioned but there are many more. Shop well and often before buying. Grill the sales person Long and hard.
After buying do not leave until the bicycle is set up for you. Proper setting makes riding
Enjoyable.
Seat height and horizontal position, handlebars for reach, shifters/brakes to your comfort.