Which miniDV as upgrade to a Panasonic PV-L-757 ?

Hi there,

My wife and I have been using a Panasonic PV-L-757 (VHS-c) video
camera and we'd like to move from that to a miniDV camera so that we
can convert our old tapes to CDs.

I keep reading opinions as to how badly many new cameras perform under
low light. And my wife says our 757 does pretty well in low light.
Since I have no way to evaluate this (never used other cameras), I
would  appreciate any input as to how our old camera compares against
models like the Sony trv-22, 33, 900, Panasonic PV-DV953, and the
like. Is there a risk that we could get a better image in good light
at the expense of a low light image worse than the 757 ?

Also, how do cameras like the trv-900 and PV-DV953 compare in size to
our 757 ?

thanks in advance