I've bought my friend's HTC Desire off him, but it doesn't have an SD card. Should I buy just any Micro SD card, or do I need to get one specifically made for the HTC Desire? Is there anything else I need to know?
The spec is simply listed (on HTC's website) as such:
ROM: 512 MB
RAM: 384 MB
8 GB microSD™ memory card (supports up to 32 GB)
The above link is for the US Cellular variant, but the C Spire version has the same memory specs (the only real difference between variants is supported bands, AFAIK). GSM Arena also reports "microSD up to 32GB". Generally speaking, Android devices support any SD card that properly complies with the SD spec. There are no "special" cards for devices - any will do.