If you send multiple documents vi e-mail you will want to get a program called Winzip. This program shrinks the size of the file and will literally allow you zip up a number of files or documents and send them via e-mail. You can get this file from the winzip web site and download it for 29 dollars. Most of the higher end and powerful computers are more than the legal office will need. Upgrading your systems will improve performance and defer having to buy another system.
Most upgrades are easy and relatively inexpensive.
As with any upgrade you must check the compatibility between your system and the proposed upgrade. Additional RAM is probably the easiest and least expensive of the upgrade. You will get the most from your money from this upgrade. You must know the specifications of your existing RAM because the additional RAM chip that you buy must be compatible with your existing RAM specifications. CPU upgrades will also improve performance.