sports betting is notoriously difficult to do professionally - unless of course you're running the book yourself; BetFair is the closest thing to this, but you must manage and respect your risk.
for fun, which is what I mostly do (although I have my history as some of you may know) with City, I'll have the occasional if not the regular punt, LOL, and there are those on here who post with some pretty decent ideas and sensible tips.
if you want to test out your betting mettle, try this:-
<a class="postlink" href="http://www.okcupid.com/tests/the-professional-gambler-aptitude-test" onclick="window.open(this.href);return false;">http://www.okcupid.com/tests/the-profes ... itude-test</a>
(& I wonder how many 'wolves' we have in here, ehehe)