I'm in exactly the same boat: finally saved enough spare cash for a Mac Pro, on the verge of buying one, then hear the rumour about a possible upgrade.
I think you need to bear a few things in mind:
Firstly, an upgrade is inevitable, it's just a matter of when. No-one knows for certain, everything you hear is just speculation. Someone on another forum insists he has a reliable source and is saying Nov 29th for the release. It might be worth waiting at least until the beginning of Dec to find out.
Of course, the waiting game might go on for ages: other people are suggesting macWorld in January, but then some others are suggesting March, June, all are just pulling dates out of the air, mostly guesswork. Sometimes it may be educated guesswork, but it's still guesswork. Nobody wants to wait indefinitely, but if you're told Nov, you wait until the end of Nov, nothing happens, you're then told Dec or Jan, so you wait again, if nothing happens again, you can bet your life people will be saying Feb, then March, and you'll just keep hanging on: you have to draw a line somewhere.
Secondly, is it absolutely vital that you need to get the best machine on the planet? If a new upgrade really is imminent, then the current Mac Pros will be discounted as sellers try and clear their old stock. They're still excellent machines by anyone's standards. For instance, Computer Warehouse here in UK are offering a good deal at the moment, a couple of hundred pounds cheaper than the Apple store, plus a free installed 500GB 2nd hard drive. I'm seriously tempted by this, but I'll wait until the end of Nov just in case.
I think you need to bear a few things in mind:
Firstly, an upgrade is inevitable, it's just a matter of when. No-one knows for certain, everything you hear is just speculation. Someone on another forum insists he has a reliable source and is saying Nov 29th for the release. It might be worth waiting at least until the beginning of Dec to find out.
Of course, the waiting game might go on for ages: other people are suggesting macWorld in January, but then some others are suggesting March, June, all are just pulling dates out of the air, mostly guesswork. Sometimes it may be educated guesswork, but it's still guesswork. Nobody wants to wait indefinitely, but if you're told Nov, you wait until the end of Nov, nothing happens, you're then told Dec or Jan, so you wait again, if nothing happens again, you can bet your life people will be saying Feb, then March, and you'll just keep hanging on: you have to draw a line somewhere.
Secondly, is it absolutely vital that you need to get the best machine on the planet? If a new upgrade really is imminent, then the current Mac Pros will be discounted as sellers try and clear their old stock. They're still excellent machines by anyone's standards. For instance, Computer Warehouse here in UK are offering a good deal at the moment, a couple of hundred pounds cheaper than the Apple store, plus a free installed 500GB 2nd hard drive. I'm seriously tempted by this, but I'll wait until the end of Nov just in case.