Just my little input :)
Multi-table tourneys are ok if they are low buy-in eg: $1 or $2 but you don't want too many people entering, a good amount of people in a multi-table is around 100 if you can find them. I only really play SNG's to make money though, in a 6 player SNG you should be able to come in the money fairly easy as you only have to beat 4 people to get there.
Basically I started at Noble with a $50 deposit, I originally started playing $5 and less SNG's, when I started to come in the money consistently then I moved up to $10 SNG's and so on. I regularly play $20 and $30 SNG's now and I don't consider myself above "average" as a poker player.
Best Tip: Don't get over confident just because you win 1 or 2.
With multi-tables the prize can be bigger but you can't always expect a place let alone a win. it stands to reason that it's easier to knock out 4 players than it is to knock out 104.
Well i'm off to the sunday headhunter now, good luck all
Tony ( The Webmaster )