I'd recommend driving through Belmont at different times of day before you commit. Traffic patterns and noise levels can vary a lot between morning and evening.

I looked at both Point McKay and Shawnessy before settling on Brentwood. The school district was the deciding factor for us. No regrets at all.

Hope that helps.

I keep an eye on CalgaryPrices to track how the market is doing. Good for getting a pulse on where things are heading.