i am trying to make a wireless remote with an lcd for my computer.... the lcd will show whats going on in the comp right.. initially i was stuck on as to how to extract info and send it to the ports and then to the remote... but after i found lcd smartie life became a lot easier .... but now i face another problem ... as i dont know how and in which way the data is sent to the ports i cant figure out how to send that data wirelessly to my remote and then display it on my lcd.... i will be using atmega 16 at both the receiver and transmitter's end.... and most probably i will be using parallel port... i will be sending data via IR led pair by switching it on and off.. in the form of binary.. so i wil also need to convert whatever data recieved by the microcontrller at the comps end into binary form.. and reconvert it to the normal data which can be displayed on the lcd.......
On the parallel port you will have to emulate an lcd display so why not use the matrix orbital output on the serial/usb emulated serial port? You'll get a lot easyer off! That data could be transmitted directly serially as you already planned. On Matrix orbital site you'll even find an explanation of their protocoll in the display's datasheets. From there it's only a little programming on the display side.
Your biggest problem would be the IR transmission. Don't think that you could send data any faster than 120bps at most. But for showing computer stats that should be enough. (that means no winamp spectrum)
How do you plan to send data back to the computer? there can't be two simultaneous IR streams (hmmm maybe in open air, but not in a room, too much reflections)...
I've done this sort of thing using a pair of Cybiko wireless devices. These can usually be picked up cheaply on eBay. Using the software from http://www.dbzoo.com/wiki/cybiko/rfterm allows you to xmit PC serial port data to the remote LCD unit. This software is very cool - a bit like an enhanced VT100 emulator.
You might need to make a special driver from Smartie if you want to produce anything more than simple displays.
Yeah, using a serial display driver in Smartie will be a lot easier than trying to interface with the parallel port. I'd go for Matrix Orbital emulation, as there are already projects here that use a microcontroller (PIC or AVR) to emulate an MO display (I've made one myself). Take a look in the hardware section of the forum.
All you need is a way to transmit RS232 data serially at whatever baud rate you choose. Short-range wireless modems can be found fairly cheaply, although as mentioned the data rate is generally fairly low. IR is cheap to implement but a but less flexible.
.... but now i face another problem 
... as i dont know how and in which way the data is sent to the ports i cant figure out how to send that data wirelessly to my remote and then display it on my lcd.... i will be using atmega 16 at both the receiver and transmitter's end.... and most probably i will be using parallel port... i will be sending data via IR led pair by switching it on and off.. in the form of binary.. so i wil also need to convert whatever data recieved by the microcontrller at the comps end into binary form.. and reconvert it to the normal data which can be displayed on the lcd.......