Cake, please do not hijack other member's thread. You should start your own. Discussing two different PCs or laptops in the same thread can create confusion.
Hi Cake, as I posted in the other thread the specs were posted over on Bethesda's blog and with what you have I would think you're alright to run the game. However you will likely need to mess around with the settings to achieve a proper balance between eye-candy and performance. Here are some benchmarks of your gt540m, which should give you an indication of where you might place and I'd guesstimate a Medium with some High mix would be the best balance.