Probability help

[TylerK]

Need a little help figuring out probability as it relates to small suited connectors and implied odds. With a hand like (for example) 54s, what are my odds of flopping any of the following:
- 2 pair
- trips
- straight draw
- flush draw

Basically what I'm trying to determine is how big a stack a raiser should have relative to his raise in order for me to call his raise with a hand like this.

[|~|ypermegachi]

2 pair:
(3C1)(3C1)(46C1) / (50C3) = 2.1%

trips:
2 * [(3C2)(47C1) / (50C3)] = 1.44%

straight draw (connectors like 54):
so A2x
A3x
23x
36x
67x
68x
6 * [(4C1)(4C1)(42C1) / (50C3)] = 17.1%

flush draw:
(11C2)(39C1) / (50C3) = 11%

so to flop any of the above is roughly 31.7%