Here ya go:
http://img353.imageshack.us/my.php?image=13sk3.jpg
http://img329.imageshack.us/my.php?image=14hu5.jpg
She doesn't physically turn into electricity in this scan, but that's also a regular part of her power set, so the fact that she remains in "human" form in this scan is just because she didn't need to do more.
...
Also, to answer leo's questions:
- Does she need to see Storm? No, just be in the general vicinity so as to access her brain's electricity (and any other electrical currents in the area). There isn't a definite range for her to be able to remotely access electrical current, but for the purposes of the fight, if Storm is close enough to affect Jenny, then the reverse is true as well.
- Extreme temps? I suppose if it got cold enough it would slow down even electrical current. But heat and cold harming electricity? Not likely. And Jenny has survived in space unaided, so it's probably a moot point.
- Also, she's stayed in electrical form for hours while traveling between cities....there's no limit ever stated for the duration she can do it.
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2loud's element tactic seems interesting, but it might be hard to do that before the aforementioned brain-drain....and if she is "being" enough electricity, affecting all of it to "kill" Jenny would be difficult.