Glad to hear from you Nudge.
I've cut on my table saw a number of times with good results. I just used a carbide blade but I can see where the special blade would be worth the investment if it gets used enough. I always make sure all of the wood sawdust is gone before I start. I've also found that if I only cut 75-90% through I can easily break it with a 2lb hammer plus I don't get blasted with chips.
I recently bought a metal cutting bandsaw off Craigslist for $75
It has saved me a lot of hacksawing on both aluminum and steel. It cuts steel better than aluminum. I get some jamming. Tryphons latest post has convinced me that a coarser blade would do the trick.