don't know what set up you have now, but if you are in the UK and have an old existing 939 mobo then read below...
If anyone like me who has monetary issues and cannot go for the wonderous new conroe chip due to having to replace motherboard and potentially RAM, unless you use the new Asrock board that lets you utilize your old PC3200 RAM with your new Conroe,
there is an alternative in the meantime, overclockers is selling AMD 64 4000+ (2.4 ghz) for under £100 ( this may seem a lot to all US readers but believe me when i say that is quite cheap for a processor that delivers some quite good performance for that price )
you can read how this compares against a AMD64 4800+ X2 in toms hardware's ultimate CPU comparison chart, unfortunately conroe has not been included, but suprisingly this £100 CPU outperforms the AMD 4800+ x2 in quite a few games... of course it can't beat the conroe, but this post is not about that, this is a possible solution to all those people who cannot afford an immediate upgrade to the best cpu today but would still like a decent games cpu ( obviously a good graphics card should be in there as well or you will be gpu limited, but looking at the Toms charts they were using 6800GTs for the review.
ok link to the price for the AMD64 4000+
http://www.overclockers.co.uk/acatalog/Socket_939.html
link to the reviews
http://www.tomshardware.co.uk/2005/11/21/the_mother_of_all_cpu_charts_...5uk/pag
there are some considerations when looking at this cpu as an upgrade, it will not be as fast as any Dual core cpu when it comes to media encoding, or photoediting, but it does hold its own in gaming which is why my post is called "Need a cheap 939 gaming solution..read this.."
Also, how long support for single core 939 will be, i am not sure, will it work well with Vista, then again I am not sure, I have heard from some people that Vista will work better on Dual Core cpus.
But if none of that bothers you then this is the upgrade solution for you....