Scrod, strange noise problems.

The sqrls Kilo TT makes a "bell-like ring," every time she goes over some bumps or rough roads. I can't replicate it by shaking it like I was King Kong (it's kind of fun because she has the 44cm).

Then on my M300, given that I haven't cleaned the drivetrain or lubed it up in the last month, I'm starting to hear squeaks when I start to pedal at a faster pace, and then I hear more of a creaking noise (think old rocking chair) ONLY on the right crank arm. I have a feeling that I should rinse the chain, lube it up, and clean the gears, tighten up the BB since it has been a while. Could be something else, though.

Any idea as to what could fix these noises?