Thanks for that.
Wonder why they dont make larger monitors. I'm sure theres demand for them.
I think there are a few reasons for the lack of very large monitors.
First, in standard PC-type use the monitor is relatively close to the eyes of the user (usually less than a metre) so if you increase the size then you need to increase the number of pixels to maintain a high enough pixel density so the image looks sharp. For example, on a 30in monitor the standard resolution is 2560x1600 (4.096 million pixels), this compares to 1920x1080 (2.07 million pixels) is the standard resolution for 21.5-24in monitors. If you increase the size of the monitor past 30in then the number of pixels would have to be further increased past 4 million to maintain quality in normal PC uses. Since driving the large number of pixels on a 30in monitor can be an issue for all but the highest-end graphics cards then this would present an even bigger problem when using 30in+ monitors in GPU intensive tasks.
Another issue is price and demand, one of the most popular 30in monitors (Dell 3011) costs £1100. With this size of monitors they can't use cheaper TN panels (as used by most mainstream sub 27in monitors and even some 27in ones) since their issues with narrow viewing angles even show up when looking stright-on. Hence they use high quality IPS panels (which have wide viewing angles) and also offer very good colour accuracy - so they do well for professional users who do colour critical work (and just generally look very good when calibrated properly). With this in mind producing a 30in+ IPS monitor would be very expensive and very few people would be willing to pay for it.
However, I think the main reason we don't see any consumer-focused 30in+ displays is usability. With such a massive, high resolution display it is difficult to get an overall picture of the screen and focus since the panel fills up most of your vision. You could sit it further back, but that would make text more difficult to read and somewhat defeats the point of such a massive panel. I find that using a multiple monitor setup (which includes a 1080p IPS-panel TV) is a better option for most people than a single, massive, expensive monitor - hence why they aren't very popular. You can get some medical/science focused high resolution/large size monitors like
this one - however they tend to cost over £10,000.
On a side note, I have an LG LCD 32in TV as well (the 32LD350). This particular one is pretty much one of the best TVs to use as a monitor since it offers a nice quality IPS panel, decent response times and crucially very low input lag (for a TV). There is a thread
here which talks about how these TVs are very good for use with PCs and how to set them up to get the most out of them. I have personally used this TV (once set up) for gaming and it is excellent. With any luck you might already have one of these TVs.
I do have space for a separate monitor for games, but id also like a better picture for movies etc. 
Thank you very much. Does make a lot of sense now you point it out. Am currently using an LG 32LX2R-ZE, so a really old version. A newer tv i think is the right decision.