I'm short

[Bluetree]

Neither my Ruby nor my Pinarello have toe overlap, and they have 700c wheels.

For bottle cages, I use the Arundel carbon side loaders. They're not cheap ($45 each) but they work great, and can be ordered for lefties or righties. My 44cm Ruby frame can easily fit two 24 oz. bottles.

Dimension and Elite also make SS side loaders, but I have no experience with them. Good luck.

EDIT: If your LBS doesn't carry them (few do) you can get a deal on the Arundel Side Loaders (Regular Side Loader + Other Sideloader) at Sage Cycles. New customers get 15% off and free shipping.

[OakLeaf]

Typically a smaller frame will make compromises in the geometry to reduce toe overlap. That may be problematic, depending on what kind of riding you want to do.

[NbyNW]

Bluetree, thanks for the Arundel sideloader info. Those are pretty cool! I do that have problem on my mtb, I've always just used a Camelback when I'm on that bike.

Oakleaf -- could you write a little more about what's being compromised with a smaller frame? Strength? Speed? Weight? Handling? Just curious, since we're on the topic. Would be good to know if I ever outgrow my current equipment.

Amy, I don't think any of the issues listed should be a reason not to buy a bike that fits your body and the type of riding you want to do. If your bike doesn't fit you, you won't want to spend a lot of time riding it.

[OakLeaf]

Off the top of my head, and people with better knowledge of bike engineering can chime in:

Bottom bracket may be lower, reducing your ground clearance in cornering (and in crossing obstacles on a MTB)

A shallower head angle, resulting in greater trail and slower steering

A steeper seat angle, meaning saddle has to be set farther back to maintain your desired KOPS, potentially reducing your choice of seatposts; also potentially causing your butt to run into your seat when you stand to climb.

Again these aren't necessarily problems, but Amy didn't say what kind of problems she was having, and these may have been among them.