now, i have looked into these cpu's, they both seem to be around the same price ($170-180 aud) and i am not sure which to go, i am primarily upgrading to play lotr: online. would that be better off running on a duel core cpu? or will a single core do fine. other than newish games, i just burn dvd's and listen to music and whatnot. this is not a comp for applications that dual cores were built for. but i am unsure about how newer games (such as lotr online) are created.
(i am also unsure of the different costs of mobo's for these chips, i assume they are around the same as each other)
EDIT: also if you guys have other CPU suggestions that would better suit my situation go ahead, i am pretty open to it, i am just looking for value for money really and i'm not a fanboy of either company
1-A dual core 3800+ is around $120, not $180
2-A P4 is not even to be mentioned as upgrade.
Now, if you want a cheap dual core, chose between a X2 3800+ or 3600+ and an E4300 or E6300.
The OP lives in Australia so the prices are different so $180 may be about right over there. Now back to topic, do not even bother with the P4. They are a chip best forgotten by anyone looking to upgrade or build new. Go with the X2 3800+ unless you can find an X2 3600+ for a good deal less. It is a better overclocker than the X2 3800+. With the prices over there the E4300 may be out of reach for your budget but if you can still come up with a good rig and get the E4300 to fit your budget go with that.
ONLY the 65nm 3600+. The 90nm version has only 256kb of cache.