I suggest you to download Mino his VB and listen to the samples. Dutch is kinda difficult since it has many ways to pronounce each vowel but it makes sense somehow. Like the vowels, if a vowel is written double it's pronounced 'longer' (it's hard to explain, like 'ee' is pronounced a bit like the 'ai' in claim while 'e' is pronounced like the 'a' in cat, but flatter).
I think it's hard to explain how to pronounce things >.< If you need help just ask me, since Dutch is my mother tongue n.n