TehMac, my history leaves me lacking, I have no clue how much cavalry the Britisch could field in the 1700's. Here's some interesting stuff from wikipedia
"By the start of the eighteenth century, the cavalry establishment had been divided into household and line units. The household establishment consisted of four troops of Horse Guards and two of Horse Grenadier Guards, while the regular establishment was composed of nine regiments of Horse and eight of Dragoons.[2] The "horse" regiments would in theory fight mounted as cavalry, while dragoons were originally mounted infantry - they would fight dismounted, but were provided with horses for swift movement. By the middle of the century, the term had come simply to mean light cavalry.
Regiments were, at this time, known by semi-permanent nicknames or by the names of their colonels; in 1751, in an attempt to reduce confusion, regiments were assigned numbers in order of their seniority. The cavalry regiments of the line were numbered in three separate sequences; 1st through 4th Horse, then 1st through 3rd Dragoon Guards, then 1st through 14th Dragoons. "Dragoon Guards" was a new title, and did not denote a Guards' role; it was adopted by the three senior horse regiments in 1746, when George III reduced them to the status of dragoons in order to save money.
The first "light horse" regiment was raised in 1745, for service in the Second Jacobite rising, and proved so successful that light troops were added to most cavalry regiments in 1755. In 1759, five complete regiments (the 15th to 19th) of Light Dragoons were formed, and the distinction was made between the light cavalry (Light Dragoon regiments) and the heavy cavalry (Dragoon and Dragoon Guard regiments). Henceforth, all newly raised regiments of cavalry would be denoted Light Dragoons.[3] By 1783, the 7th to 14th Dragoons had become the 7th to 14th Light Dragoons, changing from heavy to light roles.
The various troops of Horse Guards and Horse Grenadier Guards were regimented in 1788, forming the 1st Regiment of Life Guards and 2nd Regiment of Life Guards; together with the Royal Regiment of Horse Guards they formed the Household Cavalry. The same year, the remaining four Horse regiments were retitled as the 4th through 7th Dragoon Guards."
@ azndude, I'd aim for 4gb of ram, but otherwise you're looking just fine, it should run Empire: Total War pretty well.