I just got my first traditional like 3 months ago. I got a clam pack from Walmart, with 2 Bucks for 12 dollars! It came with a slimmer single bladed knife (I believe it's a "Solo"), and the other knife (Buck "Trio"?) has 3 blades (a clip, a spey and a sheepsfoot). But i don't think any of them have 2.5 to 3 inch blades.
I haven't really carried them much, but decided to try out something different, so I got another Walmart special for around 21 dollars. A Camillus Yello-Jacket. This one is a "Muskrat", which has two identical blades on each side. I picked it up because it looks nice with a yellow carbon fiber-like material on the handle.
Finally, the one I've carried the most, and the one I would recommend for you to start off with, a Kershaw Double Duty. This one has a 2 3/4 inch blade and a 2 5/8 blade, It has a thumbstud for each blade, and both blades lock with the same liner (traditional blade experts correct me if calling it a liner is incorrect).
You should definitely check out the Double Duty.