Uprights are usually a bit boxy, but there are a dozen ways to mic them successfully. Every upright is different, so be prepared to experiment. Generally, condensers are are going to be your first and best choice. As a general rule I also move the piano to the middle of the room, far away from any walls - not only does that make it easier to experiment, but you remove any short reflections that can cause unwanted resonances or comb filtering.

Quick 'n dirty - Open the lid and get a pair of mics in there - preferably small diaphragm condensers so you can get up close and personal to the hammers for a more isolated, poppy sound with less resonance. Stick your head in first and move around until you find the sweet spots and start from there. Using this technique works best when the player is playing particular registers, because it accentuates the notes where the mics are.

I usually find I get the best results by micing the soundboard with a pair of LDCs. Either from the back - about level with the keyboard and about 30cm in from the sides, or from the front after removing the lid and top front cover. In fact I find an upright usually sounds better without the lid and top front cover, regardless of how I'm miking it up.

i have no experience in mic'ing an upright piano for recording BUT we used to always get a great live upright piano sound by doing what alan said and popping a mic inside under the lid.............. and we just put a mono sm58 and it sounded great live ......... but as alan said you need to move it about till you find the sweet spot ......and a nice balance wbetween bass and treble notes .... that prob won't help for recording cos i bet you want pristine sound ... but it works live ..quick and easy ?

Re the awesome recording thread, isn't there an angle that says, if the piano sounds good to your ears, setting up a condenser right there should give the listener something similar? I have a plan in this regard - and it's to set up a mic in the room where the piano sounds good. Rather than close miking.

But I don't really know anything.

Depends on the production and mix. It works pretty well for solo piano (although good mics have a tendency to hear things in the room you didn't know were there), or where the piano is the featured instrument with a bit of support from drums and bass. But in a band mix I find the ambience can be a bit too big a sound when mixed forward and it gets a bit lost mixed back.

Thanks guys.
Unfortunately I dont have the greatest recording gear (only have a dynamic mic) and moving the piano is not an option (tuning and all...)
Ill mess around with it and keep what you said in mind.

I would love to get a great recording of the piano though. Ill upload a few clips to see what you guys think.