Cleaing out your recycle bin and deleting your browser history and cookies might speed it up a bit, but the other stuff you mentioned won't do much.
A good program for doing this is CCLEANER available free from CNET.COM at the following link:
http://download.cnet.com/ccleaner/?tag=main;productListing
Just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and download the software if you want.
Another good way to speed up your computer a bit for free is to DEFRAGMENT your hard drive.
Click on START.
MY COMPUTER.
RIGHT Click LOCAL DISK (C:).
Select PROPERTIES.
Select TOOLS tab.
Click on DEFRAGMENT NOW.
This process will take a while, maybe even an hour or two, but after it's done you should notice a difference depending on the condition of the drive at the start.
The best way to speed up your machine though, is to add RAM memory.
One easy way to find out for sure how much RAM your computer can hold is to go to WWW.CRUCIAL.COM and run their SCAN MY COMPUTER feature.
This handy utility will scan your hardware configuration and tell you exactly how much RAM memory you currently have installed and what type it is.
It will also tell you how many RAM slots are fitted on your motherboard and what the maximum memory capacity for each individual slot is, as well as the maximum total RAM that the motherboard can handle.
If your computer does have room to add more RAM, it will provide you with specific recommendations as to exactly what type and size of RAM stick to buy in order to maximize the memory capacity and performance of your computer.
Good luck.