Another vote for the HH 140. Bought mine at Tractor Supply about 5 years ago, they had a special going on with a helmet and I think gloves thrown in no extra charge. I use .030 wire in mine.
Regulator was included, tank was not. I got one online for about $120 or so, exchange at TS ~$35 (quite a bit cheaper than Airgas wanted). Keep the receipt for the tank! You'll need it to prove ownership when you do an exchange.
