Okay, I've just send them for appraisal at
http://openforsale.com. After much consideration and advises, here's the
Buy It Now (BIN) price for the following domains mentioned.
GamblingDen.net (NameCheap) ---
$700
DavBeckham.com (GoDaddy) ---
$40
XpertSurf.com (Enom) ---
$40
2fair.com (NameCheap) ---
$300
Payment mode accepted: Paypal