I'm still looking for a good SCH-i760 case with both a belt clip and a credit card slot. This seems to meet my criteria:

Universal Horizontal Executive Case with Credit Card Slots - Black EXQHOR

but I tried contacting Discount Cell to get exact dimensions for this case, and so far they've been nonresponsive. Does anyone have experience with this case and how it fits the SCH-i760? Thanks in advance!