working version. GO TYBOT GO GO GO!

from bs4 import BeautifulSoup

import urllib2 #http://love-python.blogspot.nl/2008/02/get-html-source-of-url.html

url = 'http://services.runescape.com/m=itemdb_rs/top100.ws'

usock = urllib2.urlopen(url)
data = usock.read()
usock.close()

tr = BeautifulSoup(data).find_all('tbody')[0].find_all('tr')
itnames, itids = {}, {}
for thistr in tr:
   td = thistr.find_all('td')
   a = td[0].find_all('a')[0]
   id = a['href'][a['href'].index('obj=')+4:]
   val = td[5].string.rstrip()
   if val[-1] == 'm':
      if val[-3:-1] == '.0':
         val = int(float(val[:-1]))
      else:
         val = float(val[:-1])
   else:
      val = int(float(val[:-1]) * 1000)
   itnames[a.string] = val
   itids[id] = val
print itnames    # now contains all data in the format {"Cannonball":107.6,...}
print itids      # now contains all data in the format {"2":107.6,...}