You can get a decent "starter" pipe for around 30 bucks or so. I still use the one I started out on. Tobacco for your pipe is fairly inexpensive, I can get enough to last me around a month for 5-10 bucks. Cigar tobacco and pipe tobacco are fairly different I think. The pipe tobacco has different flavors(vanilla, choclate, etc) It does take some time to learn how to pack the bowl right so that the tobacco burns cool and entirely. If you don't burn all the tobacco out you will build up tar resin. What I do is if I don't smoke the whole bowl, I tap ou the ashes, and leave the remaining tobacco in the bowl until I smoke it again. If I decide to take it all out, what I do is burn the resin out with a butan lighter, works pretty well. I will give you an idea of the cost of getting this started...

Pipe: anywhere from $30-$150(there are more expensive ones)
Tobacco: $1.89 oz. (at my local shop)
Pipe Tool: No more than $2.00
Pipe Cleaners: You can buy at WalMart for less than a $1.00
Bic Style lighter or Matches: dirt cheap

Really, that's all you need. Also, I've found some REALLY good deals on ebay for pipes. Some are used, but you can sterilize the mouthpiece or buy new ones. You should P/M me, and I will answer any questions, and give you as much information as I can.