Any laptop really would work. Your laptop seems more than capable. It helps if it has a nice processor and a good amount of ram, which you do, but I have found InDesign is rather friendly
and most people can run the software easily. Also, screen size may matter to you for ease of use.
Here are receomended specs for InDesign from Adobe:
- Intel® Pentium® 4 or AMD Athlon® 64 processor
- Microsoft® Windows® XP with Service Pack 3 or Windows 7
- 1GB of RAM (2GB recommended)
- 1.6GB (1.3GB for InCopy) of available hard-disk space for installation; additional free space required during installation (cannot install on removable flash-based storage devices)
- 1024×768 display (1280×800 recommended) with 16-bit video card
- DVD-ROM drive
- Adobe® Flash® Player 10 software required to export SWF files
- Some features in Adobe Bridge rely on a Direct X 9-capable graphics card with at least 64MB of VRAM
Telling us what kind of work you want to do in InDesign would be helpful.
For me, the limiting factor on laptop use is often screen real estate, but you can learn to get by.