Advice? CPU upgrade on laptop

[Refragged_Beans]

I have had my Dell 6000D for a while now and it is starting to show it's age. I was wondering if my laptop's MOBO would be able to support a dual core processor that is setup for the socket M? the point that i am getting at is whether or not it would be worth my time/money to make such an upgrade-as well as getting a better HD- for this machine.
by the way, here is a link to the processor that I was looking at: link

then the new HD I was planning on pairing with it: link

CPU Z results below:
CPU-Z 1.40.5 report file
Processor(s)
Number of processors 1
Number of cores 1 per processor
Number of threads 1 (max 1) per processor
Name Intel Pentium M 715
Code Name Dothan
Specification Intel(R) Pentium(R) M processor 1.50GHz
Package Socket 479 mPGA
Family/Model/Stepping 6.D.8
Extended Family/Model 6.D
Brand ID 22
Core Stepping C0
Technology 90 nm
Core Speed 1496.4 MHz
Multiplier x Bus speed 15.0 x 99.8 MHz
Rated Bus speed 399.0 MHz
Stock frequency 1500 MHz
Instruction sets MMX, SSE, SSE2
L1 Data cache 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2048 KBytes, 8-way set associative, 64-byte line size
Chipset & Memory
Northbridge Intel i915PM/GM rev. 03
Southbridge Intel 82801FBM (ICH6-M) rev. 03
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 1024 MBytes
Memory Frequency 99.8 MHz (1:1)
CAS# Latency (tCL) 4.0 clocks
RAS# to CAS# (tRDC) 3 clocks
RAS# Precharge (tRP) 3 clocks
Cycle Time (tRAS) 9 clocks
System
System Manufacturer Dell Inc.
System Name Inspiron 6000
System S/N 7QQJM71
Mainboard Vendor Dell Inc.
Mainboard Model 0X9238
BIOS Vendor Dell Inc.
BIOS Version A09
BIOS Date 09/28/2005
Memory SPD
Module 1 DDR2, PC2-4300 (266 MHz), 512 MBytes, Kingston
Module 2 DDR2, PC2-4300 (266 MHz), 512 MBytes, Kingston

I appreciate your time. Please feel free to comment.