well there are a couple of things to consider with suited connectors. First of all, if the pot odds are high enough, they are great hole cards. If you hit what you want (especially the straight) then you will have a monster hand. But, early in an SNG, or at a super tight SNG, this might not always be the case, as people might just fold to any bet. This consideration gets into the idea of implied odds.

The other important thing to consider about suited connectors is that since they do have some value, you can use them to confuse your opponents. In Harrington on Hold'em, Dan Harrington says that he will sometimes make his typical "top pair" raise with these (he suggests 4-5x BB), just to confuse his opponents. One word of caution about that: This is only necessary to do if you think your opponents are smart enough to study you, and I believe that at the lower levels, this isnt always the case.

hope this helped.