A trip to Italy, France, or Greece (raincheck 'till late next spring) will do the trick. A bit more affordable now with the dollar strengthening. If not that, diamonds always work, especially when accompanied by chocolate. She won't think it's lame.
ROFL she.d kill me if I bought something like that
Regarding the boat:
Get it. Don't tell her. Eventually she'll notice you are sneaking off on weekends, but when she finds out why she'll be so relieved it's not another girl that she may let you skate. If not, sell it - at least you had it for a little while.
