Background: I have a 2005 Gary Fisher Nirvana S. It has a Shimano Nexave crank-arm (FC-T303) with 28/38/48 rings. The bottom bracket is a Shimano UN54 68 x 118mm. I replaced the BB last year (old one was creaking) and the new one has about 200 miles on it.

Issue: Last winter I hit some black ice, back wheel went out from under me, and I landed on the drive side of the bike. There is now a subtle, yet noticeable, wobble during my pedaling motion.

Questions:
1. I think I bent the drive side crank arm when I crashed. Is it also possible that I bent the bottom bracket?

2. Looking for suggestions on replacing the original crank. I notice that Amazon.com has a bunch of options ranging from $20-$40 which is right about what I'm willing to spend on this bike (it's my winter beater). Any specific recommendations would be really appreciated.

I'm mainly interested in the Sugino Impel 150x (7/8 speed) or the Shimano Alivio cranksets. As far as I know, the Alivio M410 is 7/8 speed and the Alivio M430 is 9 speed. I know the Shimano non-series M443 at harriscyclery or cyclepath.ca has 48/36/26 chainrings. I believe the 36 in the middle and 26 are more compatible with either snow or having some weight in panniers on a backrack. I even got a Sugino Impel 150x with 42/34/24 to go along with an 11-32T cassette on a touring bike I want to complete this winter. The other touring bike project I want to complete in the future I have a Sugino XD 350 with 48/36/26. (I wanted to use that with Ultegra 8 speed bar-end shifters on Paul Thumbies.)

EDIT: Whoops, I totally forgot the 118mm bottom bracket length. I guess you could always take a peek at the specs before. Maybe one of the many Alivio models would be compatible.

I have no triple crank suggestions, but I would replace crank first and assume bottom bracket is okay.

My FSA Vero crank last year developed a similar wobble as I wore out the original BB (Shimano UN27 (or is it 26?) x 122.5). I replaced the BB with a much shorter brand new IRD BB, and once installed, had the exact same wobble. Mine was visible in the chainring as it rotated. I assumed that I had either buggered the taper in use or had bent the spider. No crash to speak of, just wobble from use.