If i can play cod 4 medium to hight can i play these gameS?

Heya everyone, i'm sorry to nag but i was just wondering before i buy these games i was wondering if they will work on half decent graphic settings and frame rate. I appraite your help

here are my current specs.

Pentuim 4 2.88ghz hyper threading enabled.
3gig DDR2 ram
Asus Radeon HD 4650 512mb DDR2 memory low profile 320core processor.
SATA 80gig hardrive

I got my graphics card yesterday and was amazed that i could play COD 4 at 1280 x 1024 at meduim to high settings at AA turned off.

Its my 18th birthday in 10 days =D and im getting some games but wanna make sure that im going to be able to play them well before i choose witch ones. The games that i wanna get are

Oblivion
Bioshock
The orange box ( im sure that i can play that but i want it because its amazing)
Fallout 3

I really appricate your help and im asking you guys because i know that some of you game and sometimes the system requirments are not always right.

Thankyou again

Adam =)

Do you think that i could play oblivion on full settings though? Thanks for the reply

TF2 has changed a lot since it first came out. It's actually a lot more demanding now with weather effects, particle effects and multi-core support. You'll play it, but not on high, especially not in heavy open fights (but do play it, I think I have 700 hours logged on to that game the past 2 years I've been playing it).

As far as Oblivion is concerned, medium-high would be my guess. I was playing it on medium-high with an X1950 Pro, but I also had a dual core. You'll see. Experiment with it.

You'd be okay with Bioshock and Orange Box. With Oblivion, you probably still can't max it out, but is should look good enough. Oblivion was built in the time that dual-cores were still gaining popularity, so I guess it really wouldn't require (but rather just recommend) a dual-core.

As for Fallout 3, it is a bit of a demanding title, so medium settings might be your highest there.