Speedfan is one option. Monitors hard drive temps too.
You can also check to see if your motherboard maker offers up any such program.
And BTW, CoreTemp uses an inaccurate method for calculating CPU temps. If you ever get a multi-core system, get Real Temp. On my Core 2 Quad, Core Temp was misreporting temps by as much as 10C.
Does anyone of a software or program thatn can monitor the temp. on the Pent. 4. The core Temp .99 only supports multiple cores.