First of all, let me tell you that it blows my mind that you find the Open Sicilians boring (I assume you mean Open when you say Modern). Anyway, besides that point, 2.c3 is an Anti-sicilian system used by white to avoid the complications and huge amounts of theory in the 2.Nf3, 3.d4 lines. The system is solid for the most part, but on the other hand Black has an easier time equalizing.
Of course, it can lead to sharp positions, since you can reach the Smith-Morra Gambit by transposition.
So ive tried playing the modern variations of the sicilian and i don't seem to have much success. Not only that but i find the positions boorish - even though im probably not playing it right! Does anybody have any ideas about c3? Is it sharp? how does it differ from other variations, etc... some game annotations would be really appreciated.
thanks!