My old PC is a 2001 Medion PCMT-5. It only has 512MB of RAM and USB 1.1 on the mobo.

Here are the mobo specs: http://www.msicomputer.com/product/detail_spec/MS6534.htm

Question 1
I am planning to add ANOTHER 512MB card to get 1GB of RAM.
It has a Siemens 512MB PC-133 card in one slot and the other slot is empty.
But what card do I buy, should I get the more expensive or the cheaper one?
http://www.play.com/PC/PCs/4-/8316098/Global-Memory-GMS5121331632-PC133-512MB-133MHz-SDRAM-168pin-DIMM-Computer-Memory/Product.html
http://www.play.com/PC/PCs/4-/3274824/Kingston-KVR133X64C3-512-Valueram-Computer-Memory-512MB-PC133-SDRAM-168-Pin-Dimm-32-x-8/Product.html

Question 2
I only have USB 1.1 on the mobo's PORTS

http://www.play.com/PC/PCs/4-/3274156/Belkin-Hi-Speed-USB-2-0-5-Port-PCI-Card/Product.html
If I add the above card, I will get USB 2.0 speeds if I use the card's USB ports?
Because I've asked my friends and I've got mixed RESPONSES (Some say yes, others say no because my mobo is USB 1.1).

Thanks in advanceEither RAM module will work...

Yes you will get 2.0 speeds to anything connected to the card...MBoard USB's will remain at 1.1Thanks for your quick reply.

Should I just buy the cheaper of the two sticks or WOULD it be more reliable etc if I brought the more expensive?

And, with PCI, is it universal or should I check some things beforehand? (Like voltages etc?)I would do a bit more searching on the RAM...you may find an even better deal...

And the PCI is universal for all products designed for it.
Good Luck.Is using No-Brand RAM recommended?

Because I found this stick:
http://www.ebuyer.com/product/22918

It's about £22.50 with delivery charges.

But it seems to have no warranty nor does it have any information on the product.