Unfortunately, no. There's never been any event books that Marvel has put out within the last 10 years that are very accessible. Civil War has the unfortunate side effect of being terrible.
As far as great Marvel books in general I would recommend?
Astonishing X-Men (Joss Whedon)
New X-Men (Grant Morrison)
Young Avengers (Allan Heinberg)
Nextwave (Warren Ellis)
Runaways (Brian K Vaughn, Joss Whedon)
Captain America (Ed Brubaker)
Those are some high quality fairly accessible books that I can speak from personal experience on.
Though again, I implore you to join us in the DC New 52 topic when it's posted!
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~LtM
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