I was going to get a new mac for my birthday the one I was going to chose is Apple MacBook Pro 13 Inch 2.8GHz Dual Core i7 750GB Laptop

Mac OS X Lion higher than Mac OS X 10.5.7 Leopard
Intel Core i7 dual core
Processor speed 2.8GHz
4GB DDR3 RAM
Intel HD Graphics 3000 graphics card with 384MB graphics memory

The Sims™ 3 Minimum Hardware Requirements FOR MAC OS X are

Mac OS X 10.5.7 Leopard or higher
Intel Core Duo Processor
2 GB RAM
ATI X1600 or Nvidia 7300 GT with 128 MB of Video RAM, or Intel Integrated GMA X3100.

is my laptop going to be OK are do I need to upgrade any thing I have all the SP and EP up-to showtime.

Please & Thank You for the help

No, you won't be able to play TS3 on that. The CPU is good, the RAM is ok, but you don't have a graphics card, which means that if you try to play TS3 on that machine, you will do permanent damage to the computer.

I'm pretty sure that Macs can't be upgraded due to proprietary technology, but I could be wrong. If I am, someone else who is more knowledgeable about Macs will correct me. I believe you'll have to go for a more powerful computer, though.

If you're on a budget, I cannot stress enough that you will pay well over the odds to get a Mac you can play Sims 3 on. It will be far cheaper to buy a desktop to use with Windows or Linux, or even a laptop.

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP71.0039.B0B
SMC Version (system): 1.62f6
Serial Number (system): W80225FDATM
Hardware UUID: 3FF30749-A215-506C-8F82-99609608D564
Sudden Motion Sensor:
State: Enabled

NVIDIA GeForce 320M:

Chipset Model: NVIDIA GeForce 320M
Type: GPU
Bus: PCI
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x08a0
Revision ID: 0x00a2
ROM Revision: 3533
Displays:
Color LCD:
Resolution: 1280 x 800
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes
Display Connector:
Status: No Display Connected

Will mine work?

No, your graphics are also not sufficient for TS3.

I also have the 13" new macbook pro. And i installed all the sims 3 games, and they run fine on high graphics I have the same hd 3000 card. If it breaks my graphics card ( it has not done so yet) i do have an insurance. But so far so good No trouble.

Well, you're lucky, then, and I hope you enjoy the game. However, when I'm spending €1200 on something, I prefer not to rely on luck to keep it working.